A crystal unit includes an AT-cut quartz-crystal vibrating piece, a container, a pedestal, and a conductive adhesive. The quartz-crystal vibrating piece is adhered to the pedestal at two positions along an X-axis of a crystal or at two positions along a Z′-axis of the crystal. Depending on whether the quartz-crystal vibrating piece is adhered to the pedestal at the two positions along the X-axis or is adhered to the pedestal at the two positions along the Z′-axis, the pedestal made of the crystal has the X-axis or one of the Z′-axis or a Z-axis of the crystal in a direction parallel to a plane, has a thickness T with respect to a thickness t of the quartz-crystal vibrating piece of 0.9t≤T≤3.1t, and is adhered to the two adhesion pads in a positional relationship in which the axis of the pedestal is parallel to the first direction.
A crystal unit with a built-in temperature sensor in a single chamber structure is provided and includes: a container, a depressed portion, an AT-cut quartz-crystal vibrating piece, a temperature sensor, two adhesion pads, and a pedestal made of a crystal disposed between the two adhesion pads and the AT-cut quartz-crystal vibrating piece. Depending on whether the AT-cut quartz-crystal vibrating piece is adhered to the pedestal at the two positions along the X-axis or is adhered to the pedestal at the two positions along the Z′-axis, the pedestal made of the crystal has the X-axis, or the Z′-axis or a Z-axis of the crystal in a direction parallel to a plane, and is adhered to the two adhesion pads in a positional relationship in which the axis of the pedestal is parallel to the first direction.
H03B 5/04 - Modifications du générateur pour compenser des variations dans les grandeurs physiques, p. ex. alimentation, charge, température
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
A sensing device is provided and senses a substance to be sensed in a gas around a piezoelectric resonator based on a change in an oscillation frequency of the piezoelectric resonator. The sensing device includes: the piezoelectric resonator to which the substances to be sensed is attached; a first oscillator circuit configured to oscillate the piezoelectric resonator at a first vibration order; a second oscillator circuit configured to oscillate the piezoelectric resonator at a second vibration order greater than the first vibration order; a frequency measuring unit configured to measure respective oscillation frequencies output from the first oscillator circuit and the second oscillator circuit; a temperature changing unit configured to change a temperature of the piezoelectric resonator; and a temperature controller configured to increase a temperature of the piezoelectric resonator by the temperature changing unit based on a frequency signal output from the second oscillator circuit.
A sensing sensor module and a sensor module heat dissipation structure are provided. The sensing sensor module includes a piezoelectric oscillation portion in which a reaction electrode to which a target substance in a gas adheres and a reference electrode to which the target substance does not adhere are disposed on a sensor substrate as a piezoelectric resonator, a cooling element, and a supporting member. The cooling element cools the piezoelectric oscillation portion. The supporting member supports the cooling element. The supporting member has a center portion at which the cooling element is arranged and a flange-shaped base portion that has a circular ring shape and extends outward in a radial direction of the circular ring around the center portion. The base portion dissipates heat from the center portion.
G01N 29/22 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet Détails
A sensing device includes a sensor substrate, a Peltier element unit, a circuit board, a base body, a cover body, and a base cover. The Peltier element unit in contact with the sensor substrate. The base body includes a first recessed portion for housing a region of the Peltier element unit at a side of the heat dissipation surface, a second recessed portion for housing the circuit board, and a partition plate interposed between the first recessed portion and the second recessed portion. The cover body houses the base body in a region where the first recessed portion is formed, the Peltier element unit projecting outside the first recessed portion, and the sensor substrate, the cover body having an opening formed at a position corresponding to a region where the piezoelectric resonator is disposed for adsorption of the substance to be sensed.
A sensing device for sensing a substance to be sensed contained in a gas around a piezoelectric resonator based on change in an oscillation frequency of the piezoelectric resonator. The sensing device includes the piezoelectric resonator to which the substance to be sensed attaches by being cooled, a temperature changing unit, a substrate, a frequency measuring unit, a heater, and a power supplying unit. The temperature changing unit is configured to change a temperature of the piezoelectric resonator. An integrated circuit chip including an oscillator circuit that oscillates the piezoelectric resonator is disposed on the substrate. The frequency measuring unit receives a frequency signal output from the oscillator circuit and measures an oscillation frequency of the piezoelectric resonator. The heater is disposed separately from the temperature changing unit for heating the integrated circuit chip. The power supplying unit is configured to change an electric power supplied to the heater.
A sensing sensor includes a piezoelectric oscillation portion in which a reaction electrode to which a target substance in a gas adheres and a reference electrode to which the target substance does not adhere are disposed on a sensor substrate as a piezoelectric resonator, an exterior cover that has an opening portion through which the gas passes and covers the piezoelectric oscillation portion, and a support substrate that supports the piezoelectric oscillation portion. The sensor substrate is mounted on the support substrate such that the reaction electrode is opposed to the opening portion, and a temperature sensor is arranged on an opposite side surface of a surface on which the reaction electrode and the reference electrode are disposed.
G01N 29/22 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet Détails
A base for piezoelectric device includes a substrate made of glass or crystal, a mounting pattern, a frame-shaped wall portion, a contact portion, and a second metal film. The frame-shaped wall portion is disposed in a part along an edge of the substrate on the first surface and made of a material identical to a material of the substrate. The wall portion is bonded to the substrate with a first metal film for intermetallic bonding. The external mounting terminal disposed on a second surface that is an opposite surface from the first surface of the substrate. The contact portion is insulated from the first metal film in a region directly below the wall portion. The contact portion passing through the substrate to electrically connect the mounting pattern to the external mounting terminal. The second metal film forms intermetallic bonding with the contact portion to form airtightness of the contact portion.
A sensor module according to the present invention comprises: a piezoelectric oscillator that has an electrode; an oscillation circuit that drives and oscillates the piezoelectric oscillator; and a storage circuit that stores, as initial oscillation frequency information, an oscillation frequency that is measured by oscillating the piezoelectric oscillator when the piezoelectric oscillator is shipped, wherein when the piezoelectric oscillator is driven by the oscillation circuit, the piezoelectric oscillator oscillates at a frequency corresponding to the thickness of a deposit that has been deposited on a surface of the electrode. The storage circuit may store information pertaining to a first identification number for identifying the piezoelectric oscillator and/or a second identification number for identifying the sensor module.
C23C 14/52 - Dispositifs pour observer le processus de revêtement
G01N 5/02 - Analyse des matériaux par pesage, p. ex. pesage des fines particules séparées d'un gaz ou d'un liquide en absorbant ou adsorbant les constituants d'un matériau et en déterminant la variation de poids de l'adsorbant, p. ex. en déterminant la teneur en eau
This sensor module comprises a first piezoelectric vibrator having a first electrode, a second piezoelectric vibrator having a second electrode, an electrode cover covering one of the first electrode and the second electrode, an oscillation circuit for causing the first piezoelectric vibrator and the second piezoelectric vibrator to oscillate, and a storage circuit for storing initial oscillation frequency information relating to both the first piezoelectric vibrator and a second oscillation frequency, wherein, when at least the piezoelectric vibrator, among the first piezoelectric vibrator and the second piezoelectric vibrator, of which the electrode is not covered by the electrode cover is driven by the oscillation circuit, the piezoelectric vibrator oscillates at a frequency corresponding to the thickness of a deposit accumulated on the surface of the electrode that is exposed without being covered by the electrode cover.
C23C 14/52 - Dispositifs pour observer le processus de revêtement
G01N 5/02 - Analyse des matériaux par pesage, p. ex. pesage des fines particules séparées d'un gaz ou d'un liquide en absorbant ou adsorbant les constituants d'un matériau et en déterminant la variation de poids de l'adsorbant, p. ex. en déterminant la teneur en eau
12.
BASE FOR PIEZOELECTRIC DEVICE, MANUFACTURING METHOD THEREFOR, AND PIEZOELECTRIC DEVICE
A base includes a first substrate, a contact hole and a contact hole wiring, a first metal film, a second substrate, a second metal film, and a routing wiring. The second substrate is formed of a material identical to a material of the first substrate and bonded to the first substrate by intermetallic bonding. The second metal film is disposed on a third surface as a surface of the second substrate on the first substrate side and constitutes the intermetallic bonding cooperatively with the first metal film. The routing wiring reaches a fourth surface of the second substrate as an opposite surface of the third surface from the contact hole wiring via the third surface and a side surface of the second substrate. The contact hole has an opening area on a second surface side larger than an opening area on a first surface side.
H03H 3/02 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques pour la fabrication de résonateurs ou de réseaux piézo-électriques ou électrostrictifs
H03H 9/19 - Détails de réalisation de résonateurs se composant de matériau piézo-électrique ou électrostrictif ayant un résonateur unique en quartz
[Problem] To provide an oscillator with which it is possible to prevent a delay in the correction of frequency temperature characteristics by detecting an ambient temperature before the temperature of a crystal diaphragm changes, and reduce the hysteresis of the frequency temperature characteristics. [Solution] Provided is an oscillator that is a surface mounting type, and is provided with, on a substrate 1 on which a plurality of circuits are mounted, an ambient temperature detection sensor (15) that detects temperature in order to correct frequency temperature characteristics, wherein the ambient temperature detection sensor (15) is disposed closer to a metal cover (2) than a reference crystal oscillator (11) provided with a crystal diaphragm, and other circuits, and detects the temperature via heat conduction foil (16) soldered to the metal cover (2) by a soldering portion (17), and the detected temperature is used for correcting the frequency temperature characteristics.
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
14.
Quartz-crystal vibrating piece, crystal unit, crystal controlled oscillator, and intermediate wafer for quartz-crystal vibrating piece
A quartz-crystal vibrating piece includes an element unit, excitation electrodes, and an extraction electrode. The element unit includes a vibrator, a first thick portion, and second thick portions. The vibrator has a quadrilateral shape in plan view, vibrates in a thickness-shear mode, and has a thickness t1. The first thick portion has a rectangular shape in plan view, has a short side connected to one side of the vibrator, extends in a first direction, and has a thickness t2 thicker than the thickness t1. The second thick portions are connected to both side surfaces of an end portion of the first thick portion in an opposite side of the vibrator. Each of the second thick portions extends along a second direction intersecting with the first direction and having a thickness t3 thicker than the thickness t1 and same as or different from the thickness t2.
H03H 9/02 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiquesRésonateurs électromécaniques Détails
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
An AT-cut quartz-crystal vibrating piece includes a vibrator, a peripheral portion, and a level difference. The peripheral portion has a thickness thinner than a thickness of the vibrator. The level difference is on each of a front and a back of the quartz-crystal vibrating piece. The level difference is generated caused by a thickness difference between the vibrator and the peripheral portion. When a dimension along an X-axis of a crystal of the quartz-crystal vibrating piece is defined as Lx, a dimension along a Z′-axis of the crystal of the quartz-crystal vibrating piece is defined as Lz, a thickness of the vibrator is defined as t, and a height of the level difference is defined as d, Lx is in a range from 849 to 857 μm, Lz is in a range from 625 to 645 μm, and d/t is in a range of 0.094≤d/t≤0.11.
A control circuit includes a storage unit, a generation unit, an update unit, and a rotation control unit. The storage unit stores a predetermined number of register values to designate a step frequency of a stepper motor. The generation unit generates a micro step clock signal every time a period corresponding to each of the predetermined number of register values stored in the storage unit elapses. The update unit updates the predetermined number of register values stored in the storage unit every time the generation unit generates the predetermined number of micro step clock signals. The rotation control unit supplies a phase current based on the micro step clock signal generated by the generation unit to the stepper motor to rotate a rotor of the stepper motor by a micro step angle found by equally dividing a step angle of the stepper motor into the predetermined number.
A quartz crystal device includes a package and a crystal blank mounted inside the package. An area of a flat surface of a mounted surface of the blank is 10% or more and 30% or less with respect to an area of a flat surface specified by a width and a depth of the package.
A crystal oscillator internally includes a package storing a crystal unit. The crystal oscillator is configured to include: a substrate having one surface side on which the crystal unit is disposed and another surface side on which a circuit component and a heating element are disposed, the circuit component including an oscillator circuit that oscillates the crystal unit, and the heating element regulating a temperature inside the package; a stepped portion formed at an inner wall of the package to support only an end portion of the substrate from the one surface side such that the crystal unit, the circuit component, and the heating element are spaced from a wall portion of the package; and a wire that connects between a terminal disposed at the heating element and a terminal disposed inside the package without via the substrate.
H03B 5/04 - Modifications du générateur pour compenser des variations dans les grandeurs physiques, p. ex. alimentation, charge, température
H03B 5/08 - Éléments déterminant la fréquence comportant des inductances ou des capacités localisées
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
A quartz crystal device includes a package, a pedestal, and a crystal element. The pedestal is disposed in the package. The crystal element is bonded to the pedestal at four points. An angle formed by a center line connecting midpoints of both short sides of the crystal element and a straight line connecting a center point of the center line and each of bonding points is 22° or more and 30° or less.
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
H03B 5/00 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée
22.
Crystal unit, semimanufactured crystal unit, and method for manufacturing crystal unit
A crystal unit includes a crystal element, excitation electrodes, and a container. The crystal element vibrates in a thickness-shear mode. The excitation electrodes are disposed on front and back surfaces of the crystal element. The crystal element is mounted to the container. The excitation electrodes are disposed on the crystal element. When a thickness of the crystal element is expressed as T, and a total thickness of the excitation electrodes disposed on the front and back surfaces of the crystal element is expressed as t, a ratio t/T is from 0.026 to 0.030.
H03H 9/19 - Détails de réalisation de résonateurs se composant de matériau piézo-électrique ou électrostrictif ayant un résonateur unique en quartz
H03H 3/04 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques pour la fabrication de résonateurs ou de réseaux piézo-électriques ou électrostrictifs pour obtenir une fréquence ou un coefficient de température désiré
23.
BASE FOR PIEZOELECTRIC DEVICE AND PIEZOELECTRIC DEVICE
A base for a piezoelectric device includes: a first substrate, mounting pads, a contact hole and a contact hole wiring, a first metal film, a second substrate, a second metal film, a routing wiring, a castellation, and an external mounting terminal. The second substrate is made of a material identical to the material of the first substrate. The second substrate is bonded to the first substrate by intermetallic bonding. The second metal film is disposed on a third surface. The third surface is a surface on the first substrate side of the second substrate. The second metal film constitutes the intermetallic bonding together with the first metal film. The routing wiring reaches a fourth surface that is an opposite surface of the third surface of the second substrate via the third surface and a side surface of the second substrate from the contact hole wiring.
A piezoelectric device includes a conductive adhesive, a container, and an AT-cut crystal element. The AT-cut crystal element has at least one side surface intersecting with a Z′-axis of the crystallographic axis of the crystal constituted of three surfaces. When a dimension of a straight-line portion along the Z′-axis of a second side opposed to the first side is expressed as W1 and a dimension along the Z′-axis of the AT-cut crystal element is expressed as W0, W1/W0 is 0.91 or greater, and the straight-line portion has both sides constituting corner portions in approximately right angles with sides along an X-axis of the crystal of the AT-cut crystal element. The side of the first side is at a −X-side in an X-axis of the crystallographic axis of the crystal and a side of the second side is at a +X-side in the X-axis.
H03H 9/02 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiquesRésonateurs électromécaniques Détails
H03H 3/02 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques pour la fabrication de résonateurs ou de réseaux piézo-électriques ou électrostrictifs
[Problem] To obtain a crystal oscillator that is constructed in a reduced size but achieves stable oscillation output. [Solution] A crystal oscillator equipped with a package that houses a quartz resonator therein, the crystal oscillator comprising: a substrate which is provided with, on one surface side thereof, the quartz resonator and with, on the other surface side, a heat generator for adjusting the internal temperature of the package and circuit components including an oscillation circuit for oscillating said quartz resonator; a step part which is formed on an inner wall of the package for supporting only an edge part of the substrate from the one surface side so as to cause the quartz resonator, the circuit components, and the heat generator to be separated from the walls of the package; and a wire which, without going through the substrate, connects a terminal provided to the heat generator and a terminal provided inside the package.
H01L 23/04 - ConteneursScellements caractérisés par la forme
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
An ultra-low noise crystal oscillator uses two crystal unit; an oscillation element of an oscillation circuit section and a crystal filter of a subsequent filter section. A Butler circuit in which the capacitors (C1, C2) and the inductor (L) connected in series is connected in parallel to the oscillator circuit section. This is the crystal oscillator that simplifies the manufacturing process, improves the manufacturing quality, and has good floor noise characteristics.
H03B 5/12 - Éléments déterminant la fréquence comportant des inductances ou des capacités localisées l'élément actif de l'amplificateur étant un dispositif à semi-conducteurs
H03B 5/36 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique l'élément actif de l'amplificateur comportant un dispositif semi-conducteur
27.
Piezoelectric device and manufacturing method of the same
A piezoelectric device includes a container and an AT-cut crystal element. The AT-cut crystal element has at least one side surface intersecting with a Z′-axis of the crystallographic axis of the crystal constituted of three surfaces. The first surface is a surface equivalent to a surface formed by rotating the principal surface by 4°±3.5° with an X-axis of the crystal as a rotation axis. The second surface is a surface equivalent to a surface formed by rotating the principal surface by −57°±5° with the X-axis. The third surface is a surface equivalent to a surface formed by rotating the principal surface by −42°±5° with the X-axis. When two corner portions on a side of a second side opposed to the first side of the AT-cut crystal element are viewed in plan view, each of the two corner portions have an approximately right angle.
H03H 3/02 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques pour la fabrication de résonateurs ou de réseaux piézo-électriques ou électrostrictifs
H03H 9/02 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiquesRésonateurs électromécaniques Détails
A sensing device is provided. The sensing device includes a heat regulation mechanism to regulate a temperature of a piezoelectric resonator corresponding to a voltage, and uses a sensing sensor to cause a sensing object to adsorb to and desorb from the piezoelectric resonator by increase and decrease of the temperature. A drive voltage is regulated to regulate an amplification factor of a heat regulation voltage input to a drive voltage regulator that regulates the temperature of the heat regulation mechanism corresponding to the type of a sensing sensor connected to a device main body. Therefore, when a CQCM sensor that heats a crystal resonator using a heater circuit and a TQCM sensor that regulates a heat of the crystal resonator sing a Peltier element are each used, regulation ranges of the driving powers supplied to the respective heater circuit and Peltier element can be changed.
H01L 35/32 - DISPOSITIFS À SEMI-CONDUCTEURS; DISPOSITIFS ÉLECTRIQUES À L'ÉTAT SOLIDE NON PRÉVUS AILLEURS - Détails fonctionnant exclusivement par effet Peltier ou effet Seebeck caractérisés par la structure ou la configuration de la cellule ou du thermocouple constituant le dispositif
H02N 2/18 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction fournissant une sortie électrique à partir d'une entrée mécanique, p. ex. générateurs
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
A pedestal on which a beveled blank is mounted is provided with a recess portion and an edge portion. The recess portion is provided in a central part of a surface of a pedestal body of the pedestal. The edge portion is adjacent to the recess portion to which the blank is fixed. The recess portion has a length in the short side direction of the pedestal body longer than that of the short side of the blank.
H05K 5/02 - Enveloppes, coffrets ou tiroirs pour appareils électriques Détails
H03B 1/00 - PRODUCTION D'OSCILLATIONS, DIRECTEMENT OU PAR CHANGEMENT DE FRÉQUENCE, À L'AIDE DE CIRCUITS UTILISANT DES ÉLÉMENTS ACTIFS QUI FONCTIONNENT D'UNE MANIÈRE NON COMMUTATIVEPRODUCTION DE BRUIT PAR DE TELS CIRCUITS Détails
In an oscillator device that outputs a frequency signal based on an oscillation frequency of a crystal resonator and a frequency setting value, a frequency difference detector that obtains a difference value corresponding to a frequency difference between the output frequency of the oscillator device and an external clock signal and a temperature detector are disposed. An aging coefficient and a temperature characteristic coefficient are obtained based on a secular change of the difference value obtained in the frequency difference detector and a secular change of the detected temperature during a period where the external clock signal is obtained. Furthermore, a frequency correction value is calculated using the aging coefficient and the temperature characteristic coefficient during a holdover period, and the frequency correction value is added to the frequency setting value.
H03B 5/04 - Modifications du générateur pour compenser des variations dans les grandeurs physiques, p. ex. alimentation, charge, température
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
H03L 7/099 - Détails de la boucle verrouillée en phase concernant principalement l'oscillateur commandé de la boucle
H03L 1/02 - Stabilisation du signal de sortie du générateur contre les variations de valeurs physiques, p. ex. de l'alimentation en énergie contre les variations de température uniquement
H03C 1/62 - Modulateurs dans lesquels l'amplitude de la composante de la porteuse à la sortie dépend du niveau du signal modulateur, p. ex. absence de porteuse quand il n'y a pas de signal modulateur
To provide a technique for expanding a measurement dynamic range and performing a stable detection in a sensing sensor using a crystal resonator. A spacer is disposed between an oscillator circuit that oscillates a crystal resonator and a base body that cools an oscillator circuit to a cryogenic temperature, and an oscillator circuit board includes a heater resistor that heats the oscillator circuit. Therefore, the temperature of the oscillator circuit that does not fall below a functional limit temperature and is a low temperature as much as possible can be provided. A negative resistance of the oscillator circuit can be increased, the measurement dynamic range can be expanded, and the crystal resonator can be stably oscillated.
A sensing device that senses a substance to be sensed as a gas by causing a piezoelectric resonator to adsorb the substance to be sensed, includes: a substrate, a thermoelectric element unit, a support plate, and a base portion. A sensing module unit in which a substrate, a thermoelectric element unit, and a support plate are integrated is removably disposed to a base portion that performs at least one of heat supply and heat dissipation to the thermoelectric element unit.
G01N 29/22 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet Détails
G01N 29/036 - Analyse de fluides en mesurant la fréquence ou la résonance des ondes acoustiques
G01N 29/32 - Dispositions pour supprimer des influences indésirables, p. ex. des variations de température ou de pression
H01L 25/16 - Ensembles consistant en une pluralité de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide les dispositifs étant de types couverts par plusieurs des sous-classes , , , , ou , p. ex. circuit hybrides
A PLL device includes a voltage control oscillation unit, an analog/digital converter, a quadrature demodulation unit, a comparison signal output unit, a phase difference detection unit, a loop filter, and a digital/analog converter. The quadrature demodulation unit quadrature-demodulates the digital feedback signal to obtain an in-phase component (I component) and a quadrature-phase component (Q component). The comparison signal has a set frequency of the output signal when the feedback signal is the output signal and has a frequency obtained by dividing the set frequency by the dividing number when the feedback signal is the frequency division signal. The phase difference detection unit obtains a phase difference between the digital feedback signal and the digital comparison signal based on the I component and the Q component of the digital feedback signal and the I component and an Q component of a comparison signal.
H03L 7/087 - Détails de la boucle verrouillée en phase concernant principalement l'agencement de détection de phase ou de fréquence, y compris le filtrage ou l'amplification de son signal de sortie utilisant au moins deux détecteurs de phase ou un détecteur de fréquence et de phase dans la boucle
H03L 7/091 - Détails de la boucle verrouillée en phase concernant principalement l'agencement de détection de phase ou de fréquence, y compris le filtrage ou l'amplification de son signal de sortie le détecteur de phase ou de fréquence utilisant un dispositif d'échantillonnage
H03L 7/093 - Détails de la boucle verrouillée en phase concernant principalement l'agencement de détection de phase ou de fréquence, y compris le filtrage ou l'amplification de son signal de sortie utilisant des caractéristiques de filtrage ou d'amplification particulières dans la boucle
H03L 7/189 - Synthèse de fréquence indirecte, c.-à-d. production d'une fréquence désirée parmi un certain nombre de fréquences prédéterminées en utilisant une boucle verrouillée en fréquence ou en phase en utilisant un diviseur de fréquence ou un compteur dans la boucle une différence de temps étant utilisée pour verrouiller la boucle, le compteur entre des nombres fixes ou le diviseur de fréquence divisant par un nombre fixe utilisant des moyens pour accorder grossièrement l'oscillateur commandé en tension de la boucle utilisant un convertisseur numérique/analogique pour engendrer un accord grossier de tension
H03L 7/099 - Détails de la boucle verrouillée en phase concernant principalement l'oscillateur commandé de la boucle
A sensing sensor includes an oscillator circuit, a base, a connection portion, and a temperature changing unit. The oscillator circuit oscillates the piezoelectric resonator. The base includes a base main body in which a depressed portion is provided and a lid portion at one side, supports the piezoelectric resonator at another side, and is for taking the oscillation frequency to an outside of the sensing sensor. The depressed portion houses the oscillator circuit. The lid portion covers the depressed portion. The connection portion is disposed at the one side of the base and connected to a cooling mechanism for cooling the base from the one side. The temperature changing unit is interposed between the piezoelectric resonator and the base, so as to cool and heat the piezoelectric resonator and transfer a heat radiated for cooling the piezoelectric resonator from the other side of the base to the one side.
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
G01K 11/26 - Mesure de la température basée sur les variations physiques ou chimiques, n'entrant pas dans les groupes , , ou utilisant la mesure d'effets acoustiques de fréquences de résonance
H03B 5/04 - Modifications du générateur pour compenser des variations dans les grandeurs physiques, p. ex. alimentation, charge, température
35.
AT-cut crystal element, crystal unit, and semi-manufactured crystal unit
An AT-cut crystal element includes a vibrator and a supporting portion. The vibrator has a planar shape with an approximately rectangular shape. The supporting portion is connected to one short side of the vibrator and has a thickness thicker than a thickness of the vibrator. The AT-cut crystal element has an oscillation frequency of approximately 76 Mhz. The vibrator has a distal end portion that is an end portion on a side opposite to the supporting portion. The distal end portion is formed to have a protrusion shape toward a distal end side thereof. The vibrator has both ends formed to have a protrusion shape toward an outside direction along the short side. The vibrator has a long side dimension L and a short side dimension W. A W/L is in a range of 0.74 to 0.79 or in a range of 0.81 to 0.93.
An angular error detecting device detects an angular error in a receiving direction of a frequency signal from a tracking target with respect to a front direction of an antenna based on a phase difference of a first reception signal received at a first receiving unit of the antenna and a second reception signal received at a second receiving unit having a receiving position in the antenna different from a receiving position of the first receiving unit. The angular error detecting device includes a reception signal output unit, a pilot signal supply unit, a pilot phase difference detection unit, a correction unit, and an angular error detection unit. The angular error detection unit detects the angular error based on the one side corrected at the correction unit and the other side that is not corrected of the sum signal and the difference signal.
A pedestal for a vibration element includes a main body that includes two connection portions, two clearance portions, a mounting portion, and arm portions. The two connection portions are formed along long sides of the main body and contact the base plate. The two clearance portions are formed on insides of the main body with respect to the connection portions and formed along the long sides. The mounting portion is located between the two clearance portions. The vibration element is mounted to the mounting portion. The arm portions are formed on four corners of the main body and connect the mounting portion to the connection portions. A metal pattern is connected to an electrode formed on the vibration element. The metal pattern is formed to connect the mounting portion, the arm portions, and the connection portions.
H03H 9/19 - Détails de réalisation de résonateurs se composant de matériau piézo-électrique ou électrostrictif ayant un résonateur unique en quartz
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
H03B 5/04 - Modifications du générateur pour compenser des variations dans les grandeurs physiques, p. ex. alimentation, charge, température
38.
PEDESTAL, VIBRATOR, AND OSCILLATOR FOR VIBRATION ELEMENT
[Problem] To provide a pedestal, a vibrator, and an oscillator with which vibration resistance is improved by suppressing the influence of vibration from the outside, and phase noise characteristics can be improved. [Solution] Provided are a pedestal, and a vibrator and an oscillator which are provided with the pedestal, the pedestal having: connection parts 14 connected to a substrate of a package 3 along long sides of a main body; gap parts 10c, 10d formed inside the connection parts 14 along the long side; a mount part 11 which is for a quartz piece 2 and inserted into the gap parts 10c, 10d; and arm parts 13 which have shapes curved in an arc shape and connect the mounting parts 11 and the connection parts 14 on the four corners of the main body.
A crystal unit includes an AT-cut crystal element that has a planar shape in a rectangular shape and a part as a thick portion. The crystal element includes a first end portion, a first depressed portion, the thick portion, a second depressed portion, and a second end portion in this order from a side of one short side, in viewing a cross section taken along a longitudinal direction near a center of the short side. The first depressed portion is a depressed portion disposed from the thick portion toward the first end portion side, depressed with a predetermined angle θa and subsequently bulged, and connected to the first end portion. The second depressed portion is a depressed portion disposed from the thick portion toward the second end portion side, depressed with a predetermined angle θb and subsequently bulged, and connected to the second end portion.
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
H03H 9/19 - Détails de réalisation de résonateurs se composant de matériau piézo-électrique ou électrostrictif ayant un résonateur unique en quartz
H03H 9/02 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiquesRésonateurs électromécaniques Détails
H03H 3/02 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques pour la fabrication de résonateurs ou de réseaux piézo-électriques ou électrostrictifs
A crystal unit includes an AT-cut crystal element that has a planar shape in a rectangular shape and a part as a thick portion. The crystal element includes a first end portion, a depressed portion, the thick portion, and a second end portion in this order from a side of one short side in viewing a cross section taken along a longitudinal direction near a center of the short side. The depressed portion is a depressed portion disposed from the thick portion toward the first end portion side, depressed with a predetermined angle θa and subsequently bulged, and connected to the first end portion.
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
H03H 9/19 - Détails de réalisation de résonateurs se composant de matériau piézo-électrique ou électrostrictif ayant un résonateur unique en quartz
H03H 9/02 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiquesRésonateurs électromécaniques Détails
H03H 3/02 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques pour la fabrication de résonateurs ou de réseaux piézo-électriques ou électrostrictifs
H01L 21/306 - Traitement chimique ou électrique, p. ex. gravure électrolytique
Provided is a sensing device that uses a detection sensor that comprises a temperature adjustment mechanism for adjusting the temperature of a piezoelectric vibrator according to a voltage and causes the desorption of an object to be sensed from the piezoelectric vibrator by increasing/decreasing the temperature, wherein a voltage adjustment unit for adjusting a voltage for adjusting the temperature of the temperature adjustment mechanism is made to be common and not dependent on the temperature adjustment mechanism of the detection sensor. A drive voltage is adjusted such that the amplification factor for the temperature adjustment voltage input into the drive voltage adjustment unit 73 for adjusting the temperature of the temperature adjustment mechanism is adjusted according to the type of a detection sensor 2 connected to a device body part 3. As a result, when a CQCM sensor 2A that heats a crystal oscillator 4 using a heater circuit 41 and a TQCM sensor 2B that adjusts the temperature of a crystal oscillator 4 using a Peltier element 43 are both used, the adjustment range of the drive power supplied to the heater circuit 41 and Peltier element 43 can be changed.
G01N 5/02 - Analyse des matériaux par pesage, p. ex. pesage des fines particules séparées d'un gaz ou d'un liquide en absorbant ou adsorbant les constituants d'un matériau et en déterminant la variation de poids de l'adsorbant, p. ex. en déterminant la teneur en eau
[Problem] To provide a technique, with respect to an oscillating device that uses a crystal oscillator and stabilizes an oscillating frequency on the basis of an external clock signal, for stabilizing the oscillating frequency that is output even when the external clock is interrupted. [Solution] An oscillating device which outputs a frequency signal on the basis of an oscillating frequency of a crystal oscillator 10 and a frequency setting value and is provided with: a frequency difference detection unit 207 for determining a difference value corresponding to a frequency difference between an output frequency of the oscillating device and an external clock signal; and a temperature detection unit. During a period in which the external clock signal is being acquired, an aging coefficient (a1) and a temperature characteristic coefficient (a2) are determined on the basis of a change over time of the difference value determined by the frequency difference detection unit 207, and a change over time of a detected temperature. Further, during a hold-over period, a frequency correction value is calculated using the aging coefficient (a1) and the temperature characteristic coefficient (a2), and is added to the frequency setting value.
H03L 1/02 - Stabilisation du signal de sortie du générateur contre les variations de valeurs physiques, p. ex. de l'alimentation en énergie contre les variations de température uniquement
H03L 7/14 - Détails de la boucle verrouillée en phase pour assurer une fréquence constante quand la tension d'alimentation ou la tension de correction fait défaut
A measurement device 1 comprises: an acquisition unit 19 for acquiring reference information associating the distance between an object and a position where reflected waves that are electromagnetic waves produced when predetermined electromagnetic waves transmitted toward the object are reflected at the object are received, a phase of the reflected waves, and a physical property of the object; a transmitting antenna 11 for transmitting electromagnetic waves toward a measurement subject 2; a receiving antenna 12 for receiving reflected waves from the measurement subject 2; and an identification unit 20 for identifying a physical property of the measurement subject 2 on the basis of the phase of the reflected waves received by the receiving antenna 12, by consulting the reference information that corresponds to an object corresponding to the material of the measurement subject 2 and that corresponds to the distance between the measurement subject 2 and the receiving antenna 12.
G01N 22/00 - Recherche ou analyse des matériaux par l'utilisation de micro-ondes ou d'ondes radio, c.-à-d. d'ondes électromagnétiques d'une longueur d'onde d'un millimètre ou plus
Provided is a sensing sensor in which a crystal oscillator is used, wherein detection involving a broader and stable measurement dynamic range is performed. A spacer 9 is provided between an oscillation circuit that causes a crystal oscillator 5 to oscillate and a base body 20 that cools the oscillation circuit 62 to an ultra-low temperature, and a heater resistor 64 for heating the oscillation circuit 62 is provided to an oscillation circuit substrate 3. Therefore, the temperature of the oscillation circuit 62 can be set as low as possible without falling below the functional limitation temperature. The negative resistance of the oscillation circuit 62 can be increased, the measurement dynamic range can be broadened, and the crystal oscillator 5 can be caused to oscillate stably.
G01N 5/02 - Analyse des matériaux par pesage, p. ex. pesage des fines particules séparées d'un gaz ou d'un liquide en absorbant ou adsorbant les constituants d'un matériau et en déterminant la variation de poids de l'adsorbant, p. ex. en déterminant la teneur en eau
45.
Substance detection system and substance detection method
A substance detection system and a substance detection method are provided. The temperature identifying portion identifies a surface temperature of the quartz substrate, based on a difference between a deviation of the fundamental wave frequency from at least any predetermined reference fundamental wave frequency of the reference crystal resonator and the detecting crystal resonator and a deviation of the third harmonic frequency from a predetermined reference third harmonic frequency. The substance identifying portion identifies a temperature at which a contaminant attached to the detecting crystal resonator is desorbed from the detecting crystal resonator to identify the contaminant based on the temperature at which the contaminant is desorbed. The temperature is identified based on a difference between the fundamental wave frequency of the reference crystal resonator and the fundamental wave frequency of the detecting crystal resonator measured by the frequency measuring portion and the temperature identified by the temperature identifying portion.
G01N 25/08 - Recherche ou analyse des matériaux par l'utilisation de moyens thermiques en recherchant les changements d'état ou de phaseRecherche ou analyse des matériaux par l'utilisation de moyens thermiques en recherchant le frittage du point d'ébullition
G01K 11/26 - Mesure de la température basée sur les variations physiques ou chimiques, n'entrant pas dans les groupes , , ou utilisant la mesure d'effets acoustiques de fréquences de résonance
H03B 5/04 - Modifications du générateur pour compenser des variations dans les grandeurs physiques, p. ex. alimentation, charge, température
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
G01N 5/04 - Analyse des matériaux par pesage, p. ex. pesage des fines particules séparées d'un gaz ou d'un liquide en éliminant un constituant, p. ex. par évaporation, et en pesant le reste
G01N 29/036 - Analyse de fluides en mesurant la fréquence ou la résonance des ondes acoustiques
G01N 29/44 - Traitement du signal de réponse détecté
G01N 29/30 - Dispositions pour l'étalonnage ou la comparaison, p. ex. avec des objets standard
A single-chamber-type temperature-sensor-provided crystal unit includes: a single chamber; and a quartz-crystal vibrating piece and a temperature sensor, provided in the single chamber. The quartz-crystal vibrating piece has a square planar shape. The quartz-crystal vibrating piece is secured in the single chamber at two securing portions via conductive members. The two securing portions are in proximities of both ends of a first side of the quartz-crystal vibrating piece. The temperature sensor has a rectangular parallelepiped shape. The temperature sensor is disposed such that a longitudinal surface of the temperature sensor is parallel to a line segment Y and the temperature sensor is close to a side of the two securing portions within the single chamber, when a line segment connecting the two securing portions is defined as the line segment Y.
A signal processing circuit includes a clock generating circuit, a divider circuit, a converter, and an amplifier. The clock generating circuit outputs a first clock. The divider circuit divides the first clock to output a second clock having a frequency lower than a frequency of the first clock. The converter converts an input signal into a digital signal based on a first clock output from the clock generating circuit and a second clock output from the divider circuit. The amplifier, disposed between the clock generating circuit and the divider circuit, has a phase variation property opposite to a phase variation property of the divider circuit. The phase variation property of the divider circuit indicates a relationship between a phase variation amount of an output signal with respect to an input signal in the divider circuit and an ambient temperature of the divider circuit.
In an OCXO, which outputs an oscillation frequency by oscillating a crystal resonator, a correspondence relationship between an oscillation frequency and an elapsed time at a beginning after a start of oscillation of a first crystal resonator is acquired. Based on the acquired result, data after the beginning and corresponding to a correspondence relationship between an accumulated elapsed time of the oscillation and the oscillation frequency after the start of the oscillation is obtained. Based on the accumulated elapsed time of the oscillation and this data, a frequency setting value is corrected. While an output frequency of the first crystal resonator fluctuates in association with the elapsed time, the output frequency is corrected by the frequency correction value corresponding to the accumulated elapsed time, thereby stabilizing the oscillation frequency.
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
H03L 1/00 - Stabilisation du signal de sortie du générateur contre les variations de valeurs physiques, p. ex. de l'alimentation en énergie
H03L 1/02 - Stabilisation du signal de sortie du générateur contre les variations de valeurs physiques, p. ex. de l'alimentation en énergie contre les variations de température uniquement
H03L 1/04 - Détails structurels destinés à maintenir la température constante
H03L 7/00 - Commande automatique de fréquence ou de phaseSynchronisation
An ultrasonic transducer includes a piezoelectric element in round shape, an acoustic lens, and an acoustic matching layer. The piezoelectric element generates an ultrasonic sound wave. The acoustic matching layer decreases a reflection of the ultrasonic sound wave from a subject. The piezoelectric element has a center having a hole through which an optical fiber that guides a light of a light source passes. The ultrasonic transducer transmits and receives the ultrasonic sound wave while emitting the light. The acoustic lens has a material using a resin with a withstand voltage, mainly polymethylpentene. The acoustic matching layer has a thickness set to λ/4 by not applying a polyparaxylylene coating for ensuring the withstand voltage on the acoustic matching layer. The optical fiber has a distal end configured not to pass through the acoustic lens. The piezoelectric element and the acoustic matching layer have shapes in a planar surface.
A61B 3/10 - Appareils pour l'examen optique des yeuxAppareils pour l'examen clinique des yeux du type à mesure objective, c.-à-d. instruments pour l'examen des yeux indépendamment des perceptions ou des réactions du patient
A61B 3/00 - Appareils pour l'examen optique des yeuxAppareils pour l'examen clinique des yeux
G01N 29/28 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet Détails pour établir le couplage acoustique
An outer case for an ultrasonic probe that houses a module of the ultrasonic probe is provided. The outer case includes a grip case gripped by a user and a head case that engages with the grip case. The grip case has a first engaging portion where one or a plurality of convex portions are disposed. The head case has a second engaging portion where one or a plurality of depressed portions are disposed at positions where the one or plurality of depressed portions engage with the one or plurality of convex portions. The convex portion and the depressed portion are engaged to be locked.
A piezoelectric device includes a piezoelectric vibrating piece and a container. The piezoelectric vibrating piece has a rectangular planar shape and has a portion of a first side secured to the container. The piezoelectric vibrating piece has a second side opposing the first side and includes a projecting portion that projects outward from the second side in at least one of proximity of both ends of the second side along the second side.
A quartz crystal device includes a crystal element, a container, a conductive adhesive having flexibility, first pillow portions, and a second pillow portion. The first pillow portions hold the crystal element floated from an inner bottom surface of the container at the proximities of the two positions. The second pillow portion opposes the crystal element at a proximity of a second side. The second side opposes the first side of the crystal element. A height of the first pillow portion is represented as h and a length of the first pillow portion in a direction perpendicular to the first side is represented as X1, where the h is 20 μm to 50 μm and the X1 is 150 μm or less. The conductive adhesive covers at least a top surface and a side surface of the first pillow portion. The side surface is in a center side of the crystal element.
H03H 9/02 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiquesRésonateurs électromécaniques Détails
H03H 9/13 - Moyens d'excitation, p. ex. électrodes, bobines pour réseaux se composant de matériaux piézo-électriques ou électrostrictifs
H03H 3/02 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques pour la fabrication de résonateurs ou de réseaux piézo-électriques ou électrostrictifs
A crystal unit includes an AT-cut crystal element that has a planar shape in a rectangular shape and a part as a thick portion. The crystal element includes a first end portion, a first depressed portion, the thick portion, a second depressed portion, and a second end portion in an order from a side of one short side in viewing a cross section taken along a longitudinal direction near a center of the short side. The first depressed portion is a depressed portion disposed from the thick portion toward the first end portion side, depressed with a predetermined angle θa and subsequently bulged, and connected to the first end portion. The second depressed portion is a depressed portion disposed from the thick portion toward the second end portion side, depressed with a predetermined angle θb and subsequently bulged, and connected to the second end portion.
H03H 9/13 - Moyens d'excitation, p. ex. électrodes, bobines pour réseaux se composant de matériaux piézo-électriques ou électrostrictifs
H01L 41/332 - Mise en forme ou usinage de corps piézo-électriques ou électrostrictifs par gravure, p.ex. par lithographie
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
H01L 41/053 - Montures, supports, enveloppes ou boîtiers
H03H 9/19 - Détails de réalisation de résonateurs se composant de matériau piézo-électrique ou électrostrictif ayant un résonateur unique en quartz
H03H 3/02 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques pour la fabrication de résonateurs ou de réseaux piézo-électriques ou électrostrictifs
H03H 9/17 - Détails de réalisation de résonateurs se composant de matériau piézo-électrique ou électrostrictif ayant un résonateur unique
H03H 9/02 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiquesRésonateurs électromécaniques Détails
A PLL circuit includes a voltage control oscillator, a frequency difference detector, a phase difference detector, and an outputter. The frequency difference detector detects a frequency difference between a reference signal and the oscillation signal and outputs a first control value based on the detected frequency difference. The phase difference detector detects a phase difference between the reference signal and the oscillation signal, and outputs a second control value based on the detected phase difference. The outputter outputs the control voltage based on the first control value and the second control value to the voltage control oscillator while the second control value does not exceed a predetermined range, and outputs the control voltage based on a corrected value obtained by correcting the first control value and the second control value to the voltage control oscillator while the second control value exceeds a predetermined range.
H03L 7/087 - Détails de la boucle verrouillée en phase concernant principalement l'agencement de détection de phase ou de fréquence, y compris le filtrage ou l'amplification de son signal de sortie utilisant au moins deux détecteurs de phase ou un détecteur de fréquence et de phase dans la boucle
H03L 7/099 - Détails de la boucle verrouillée en phase concernant principalement l'oscillateur commandé de la boucle
A surface mount type device includes: an electronic component, a main substrate on which the electronic component is mounted, a pedestal on which the main substrate is mounted, a lower substrate on which the pedestal is mounted, and a cover mounted on the lower substrate so as to cover the pedestal. The soldering pattern is soldered with the cover from a region where the cover is mounted to an inside of the lower substrate, on the lower substrate. The pedestal includes a cut-out portion in a side surface portion so as to form a space above the soldering pattern. The cover is secured to the soldering pattern by a solder formed in the space.
A quartz crystal device includes a quartz-crystal vibrating piece, a container, and a pedestal. The container houses the quartz-crystal vibrating piece. The pedestal is located between the quartz-crystal vibrating piece and the container for connecting and fixing the quartz-crystal vibrating piece to the container. The pedestal is configured with a crystal. The pedestal is fixed to the container at three places of a first fixation point, a second fixation point, and a third fixation point in a plan view. The first fixation point, the second fixation point, and the third fixation point are configured so as to become positions where an inner center, an outer center, or a gravity center of a triangle formed by connection of the first, second and third fixation points and a gravity center of the pedestal match.
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
H03L 1/02 - Stabilisation du signal de sortie du générateur contre les variations de valeurs physiques, p. ex. de l'alimentation en énergie contre les variations de température uniquement
H03H 9/19 - Détails de réalisation de résonateurs se composant de matériau piézo-électrique ou électrostrictif ayant un résonateur unique en quartz
60.
Crystal controlled oscillator and manufacturing method of crystal controlled oscillator
A crystal controlled oscillator includes a crystal unit, an integrated circuit, and an insulating resin. The crystal unit contains a crystal vibrating piece resonating at a predetermined frequency. The integrated circuit places the crystal unit. The integrated circuit includes an oscillator circuit oscillating the crystal vibrating piece. The insulating resin is formed to cover the crystal unit on the integrated circuit.
H03L 7/00 - Commande automatique de fréquence ou de phaseSynchronisation
H03B 1/02 - Détails de structure des oscillateurs de puissance, p. ex. pour le chauffage
C30B 1/00 - Croissance des monocristaux à partir de l'état solide
H01L 21/56 - Encapsulations, p. ex. couches d’encapsulation, revêtements
H01L 21/74 - Réalisation de régions profondes à haute concentration en impuretés, p. ex. couches collectrices profondes, connexions internes
H01L 21/82 - Fabrication ou traitement de dispositifs consistant en une pluralité de composants à l'état solide ou de circuits intégrés formés dans ou sur un substrat commun avec une division ultérieure du substrat en plusieurs dispositifs individuels pour produire des dispositifs, p.ex. des circuits intégrés, consistant chacun en une pluralité de composants
H03H 3/02 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques pour la fabrication de résonateurs ou de réseaux piézo-électriques ou électrostrictifs
A piezoelectric device includes a piezoelectric vibrating piece, a container, and a lid. The piezoelectric vibrating piece is bevel processed and has a bevel surface at one end of the piezoelectric vibrating piece. Thea container holds the piezoelectric vibrating piece with the bevel surface at the one end of the piezoelectric vibrating piece. The container has a connection pad at a holding region of the container and a pillow portion at a region corresponding to the other end of the piezoelectric vibrating piece. The lid member seals the container. The connection pad is buried in the container at the holding region in a state of a flat surface with a surface of the container and in a state where the surface of the connection pad is exposed. The piezoelectric vibrating piece is spanned between the surface of the connection pad and a top surface of the pillow portion.
An ultrasonic transducer includes a housing, a driving device, and a detecting device. The housing internally includes an ultrasound transmitting/receiving unit, the housing sealing ultrasonic propagation liquid. The driving device includes a driving motor and an intermediate member. The driving device is configured to transmit a rotary driving force from the driving motor to swing the ultrasound transmitting/receiving unit. The detecting device includes a detecting member and is configured to detect an origin position serving as a reference in control of the swing of the ultrasound transmitting/receiving unit. The driving device is configured to transmit the rotary driving force to the intermediate member, extract a rotation of the intermediate member, decelerate the rotation of the intermediate member and transmit the rotation to the detecting member thereof in a route different from the driving device, and detect the rotation of the detecting member by a sensor to detect an origin position.
G01N 29/22 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet Détails
A piezoelectric vibrating piece includes a piezoelectric substrate and excitation electrodes. The excitation electrode includes a main thickness portion and an inclined portion, the main thickness portion has a constant thickness, the inclined portion is formed on a peripheral area of the main thickness portion, the inclined portion gradually decrease in thickness from a part contacting the main thickness portion toward an outermost periphery of the excitation electrode. The inclined portion has a width as an inclination width in a length of 0.84 times or more and 1.37 times or less of a first flexural wavelength and 2.29 times or more and 3.71 times or less of a second flexural wavelength, the first flexural wavelength is a wavelength of a flexure vibration at a fundamental wave of the thickness-shear vibration, the second flexural wavelength is a wavelength of a flexure vibration at a third harmonic of the thickness-shear vibration.
A sensing sensor includes a main body portion, a piezoelectric resonator, a connecting terminal, and an information storage. The main body portion includes a supply region to which the sample solution is supplied. The piezoelectric resonator is disposed to face the supply region and includes a capturing layer that captures a sensing object. The connecting terminal is configured to attachably/detachably connect a conductive path connected to an electrode of the piezoelectric resonator to a frequency measuring unit. The information storage stores calibration curve information to specify a calibration curve that indicates a relationship between a density of the sensing object and a frequency variation amount of the piezoelectric resonator before and after supplying the sample solution.
G01N 5/02 - Analyse des matériaux par pesage, p. ex. pesage des fines particules séparées d'un gaz ou d'un liquide en absorbant ou adsorbant les constituants d'un matériau et en déterminant la variation de poids de l'adsorbant, p. ex. en déterminant la teneur en eau
G01G 3/13 - Appareils de pesée caractérisés par l'utilisation d'organes déformables par élasticité, p. ex. balances à ressort dans lesquels l'élément de pesée est constitué par un corps solide soumis à une pression ou une traction pendant la pesée le corps solide présentant des propriétés piézo-électriques ou piézo-résistives
G01G 3/16 - Appareils de pesée caractérisés par l'utilisation d'organes déformables par élasticité, p. ex. balances à ressort dans lesquels l'élément de pesée est constitué par un corps solide soumis à une pression ou une traction pendant la pesée utilisant la mesure des variations de la fréquence des oscillations du corps
G01N 29/036 - Analyse de fluides en mesurant la fréquence ou la résonance des ondes acoustiques
H01L 41/04 - DISPOSITIFS À SEMI-CONDUCTEURS; DISPOSITIFS ÉLECTRIQUES À L'ÉTAT SOLIDE NON PRÉVUS AILLEURS - Détails - Détails d'éléments piézo-électriques ou électrostrictifs
G01N 15/06 - Recherche de la concentration des suspensions de particules
G01G 23/01 - Test ou calibrage des appareils de pesée
H01L 41/113 - Eléments piézo-électriques ou électrostrictifs à entrée mécanique et sortie électrique
G01N 29/22 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet Détails
G01N 29/44 - Traitement du signal de réponse détecté
To provide an oscillator configured to output a frequency signal accurately reflecting a result of a temperature adjustment by a heater circuit. An oscillator outputs a frequency signal with a frequency preliminarily set. A crystal resonator connected to an oscillator circuit is housed inside a crystal resonator cover. Soldering this crystal resonator cover onto the base plate inside the container disposes the crystal resonator on the base plate inside the container. A heater circuit performs a temperature adjustment inside the container based on a temperature detected by a temperature detector. At this time, the crystal resonator cover that houses the crystal resonator is constituted of a phosphorus deoxidized copper.
H03B 5/04 - Modifications du générateur pour compenser des variations dans les grandeurs physiques, p. ex. alimentation, charge, température
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
H03H 9/205 - Détails de réalisation de résonateurs se composant de matériau piézo-électrique ou électrostrictif ayant des résonateurs multiples
H03L 1/04 - Détails structurels destinés à maintenir la température constante
H03L 5/00 - Commande automatique de la tension, du courant ou de la puissance
H03L 1/02 - Stabilisation du signal de sortie du générateur contre les variations de valeurs physiques, p. ex. de l'alimentation en énergie contre les variations de température uniquement
67.
Piezoelectric vibrating piece and piezoelectric device
A piezoelectric vibrating piece includes a piezoelectric substrate, a first excitation electrode, and a second excitation electrode. The piezoelectric substrate is formed into a flat plate shape and vibrates in a thickness-shear vibration mode. The first excitation electrode is formed on one principal surface of the piezoelectric substrate. The second excitation electrode is formed on another principal surface of the piezoelectric substrate. The first excitation electrode is formed to entirely have an identical thickness. The second excitation electrode has a main thickness portion and an inclined portion. The main thickness portion has a constant thickness. The inclined portion is formed in a peripheral area of the main thickness portion and gradually decreases in thickness from a portion in contact with the main thickness portion to an outermost periphery of the second excitation electrode. The main thickness portion has a thickness larger than the thickness of the first excitation electrode.
H03H 9/17 - Détails de réalisation de résonateurs se composant de matériau piézo-électrique ou électrostrictif ayant un résonateur unique
H03H 3/04 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques pour la fabrication de résonateurs ou de réseaux piézo-électriques ou électrostrictifs pour obtenir une fréquence ou un coefficient de température désiré
A piezoelectric device includes a base, a piezoelectric vibrating piece, and a cover. The base has a depressed portion and a bank portion. The piezoelectric vibrating piece is housed within the depressed portion. The cover is bonded on a top surface of the bank portion of the base with a sealing metal. The top surface of the base has an inclined surface that inclines down toward an inside of the base in a direction along a width direction of the bank portion or an inclined surface that inclines down toward an outside of the base in the direction along the width direction of the bank portion.
[Problem] To provide a temperature detection device with which there is no break in temperature detection when detecting the temperature on the basis of a change in the oscillation frequency of a crystal piece. [Solution] First and second oscillation regions 40, 50 are formed in a crystal piece (14), and the first or second oscillation region 40, 50 is caused to oscillate with a 3x wave or a fundamental wave by the switching of switch units SW1-SW3. Then, respective frequency rates of change F2, F1 for the 3x wave and the fundamental wave in the first oscillation region are found by a data processing unit 6, and from the difference of such rates of change, the temperature is detected. In addition, whether the oscillation of the first oscillation region 40 is abnormal or not is monitored on the basis of the results of measuring the frequency of the first oscillation region 40, and when the oscillation is determined to be abnormal, the second oscillation region 50 is used to detect the temperature from the same difference (F2'-F1').
G01K 7/32 - Mesure de la température basée sur l'utilisation d'éléments électriques ou magnétiques directement sensibles à la chaleur utilisant la variation de la fréquence de résonance d'un cristal
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
H03H 9/205 - Détails de réalisation de résonateurs se composant de matériau piézo-électrique ou électrostrictif ayant des résonateurs multiples
70.
SUBSTANCE DETECTION SYSTEM AND SUBSTANCE DETECTION METHOD
A substance detection system comprising: a reference crystal oscillator and a detection crystal oscillator formed on a single crystal substrate; an oscillation circuit module that sequentially oscillates the reference crystal oscillator and the detection crystal oscillator at a fundamental wave frequency and a third-harmonic wave frequency; a temperature identifying unit that identifies the surface temperature of the crystal substrate on the basis of a differential between a deviation of the fundamental wave frequency relative to a prescribed reference fundamental wave frequency of at least one of the reference crystal oscillator and detection crystal oscillator, and a deviation of the third-harmonic wave frequency relative to a prescribed reference third-harmonic wave frequency; and a substance identifying unit that, on the basis of the difference between the fundamental wave frequency of the reference crystal oscillator and the fundamental wave frequency of the detection crystal oscillator measured by a frequency measuring unit and on the basis of the temperature identified by the temperature identifying unit, identifies a temperature at which a contamination substance adhered to the detection crystal oscillator has detached therefrom and then identifies the contamination substance on the basis of the temperature at which the detachment occurred.
G01N 5/04 - Analyse des matériaux par pesage, p. ex. pesage des fines particules séparées d'un gaz ou d'un liquide en éliminant un constituant, p. ex. par évaporation, et en pesant le reste
A piezoelectric device is provided and includes: a piezoelectric vibrating piece, having an outer shape in rectangular shape and including an excitation electrode formed on both principal surfaces which are a top surface and a lower surface, an electrode pad formed at both ends of one short side, and an extraction electrode extracted from the excitation electrode to the electrode pad to be electrically connected to the electrode pad; a package, including a placement surface on which the piezoelectric vibrating piece is placed as opposed to the lower surface of the piezoelectric vibrating piece, and an adhesion pad formed on the placement surface; and a conductive adhesive, securing the piezoelectric vibrating piece to the package and electrically connecting the adhesion pad to the electrode pad. An adhesive is applied on the top surface of the piezoelectric vibrating piece and between the conductive adhesive and the excitation electrode.
H03H 9/19 - Détails de réalisation de résonateurs se composant de matériau piézo-électrique ou électrostrictif ayant un résonateur unique en quartz
H03H 3/02 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques pour la fabrication de résonateurs ou de réseaux piézo-électriques ou électrostrictifs
A piezoelectric device includes a piezoelectric vibrating piece, an excitation electrode, an extraction electrode, a container, a pad, a conductive member, and a heat conductive metal film. The excitation electrode is disposed on a front surface and a back surface of the piezoelectric vibrating piece. The extraction electrode is extracted from the excitation electrode. The container houses the piezoelectric vibrating piece. The pad is disposed in the container, and the pad is connected to the piezoelectric vibrating piece. The conductive member connects the pad to the extraction electrode. The heat conductive metal film is disposed at least on a surface of a pad side of the piezoelectric vibrating piece, the heat conductive metal film is extracted from the extraction electrode without contacting the excitation electrode.
H01L 41/053 - Montures, supports, enveloppes ou boîtiers
H01L 41/22 - Procédés ou appareils spécialement adaptés à l'assemblage, la fabrication ou au traitement de dispositifs piézo-électriques ou électrostrictifs, ou de leurs parties constitutives
H01L 41/29 - Formation d’électrodes, de connexions électriques ou de dispositions de bornes
73.
Clock generating circuit and signal processing device
A clock generating circuit includes a dividing unit and a distribution unit. The dividing unit divides a reference clock to generate a divided clock, and the divided clock has a frequency of 1/N times of a frequency of the reference clock, where N is an integer of two or more. The distribution unit distributes the reference clock to a first route and a second route, the first route includes an output terminal that outputs a clock with a frequency identical to the frequency of the reference clock, and the second route includes the dividing unit. The dividing unit includes one or more amplifiers, one or more dividing circuits, and a correction circuit. The correction circuit is disposed between the amplifier and the dividing circuit, and the correction circuit corrects a level of an input clock input to the dividing circuit.
H03L 1/02 - Stabilisation du signal de sortie du générateur contre les variations de valeurs physiques, p. ex. de l'alimentation en énergie contre les variations de température uniquement
G06F 1/08 - Générateurs d'horloge ayant une fréquence de base modifiable ou programmable
H03K 21/10 - Circuits de sortie comprenant des circuits logiques
H03L 7/18 - Synthèse de fréquence indirecte, c.-à-d. production d'une fréquence désirée parmi un certain nombre de fréquences prédéterminées en utilisant une boucle verrouillée en fréquence ou en phase en utilisant un diviseur de fréquence ou un compteur dans la boucle
An AT-cut crystal element is provided for reducing unnecessary vibration and for improving impedance of a resonator. Two side surfaces intersecting with a Z′-axis of a crystallographic axis of crystal are constituted of three surfaces of a first surface as an m-surface of quartz crystal, a second surface that intersects with the first surface and is other than the m-surface, and a third surface that intersects with the second surface and is other than the m-surface. Moreover, the second surface is a surface corresponding to a surface obtained by rotating a principal surface of the AT-cut crystal element by −74±3° having an X-axis of crystal as a rotation axis, and the third surface is a surface corresponding to a surface obtained by rotating the principal surface by −56±3° having the X-axis of the crystal as the rotation axis.
H03H 9/02 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiquesRésonateurs électromécaniques Détails
H03H 3/02 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques pour la fabrication de résonateurs ou de réseaux piézo-électriques ou électrostrictifs
H01L 41/332 - Mise en forme ou usinage de corps piézo-électriques ou électrostrictifs par gravure, p.ex. par lithographie
H03H 3/04 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques pour la fabrication de résonateurs ou de réseaux piézo-électriques ou électrostrictifs pour obtenir une fréquence ou un coefficient de température désiré
A crystal resonator vibrates in a thickness-shear mode. The crystal resonator includes excitation electrodes being disposed on a front surface and a back surface of a crystal element. The excitation electrodes are disposed on the crystal element to have a positional relationship, where a displacement distribution at an edge of the excitation electrode on the front surface is identical to a displacement distribution at an edge of the excitation electrode on the back surface.
H03H 3/02 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques pour la fabrication de résonateurs ou de réseaux piézo-électriques ou électrostrictifs
H03H 9/19 - Détails de réalisation de résonateurs se composant de matériau piézo-électrique ou électrostrictif ayant un résonateur unique en quartz
H03H 9/13 - Moyens d'excitation, p. ex. électrodes, bobines pour réseaux se composant de matériaux piézo-électriques ou électrostrictifs
H03H 3/04 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques pour la fabrication de résonateurs ou de réseaux piézo-électriques ou électrostrictifs pour obtenir une fréquence ou un coefficient de température désiré
An oven-controlled crystal oscillator includes a base substrate, a power transistor, and a surface mount type crystal resonator. The base substrate has a bottom surface on which a mounting terminal for surface mounting is disposed. The power transistor is mounted on the base substrate. The surface mount type crystal resonator is mounted on the power transistor.
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
H03L 1/02 - Stabilisation du signal de sortie du générateur contre les variations de valeurs physiques, p. ex. de l'alimentation en énergie contre les variations de température uniquement
H01L 23/31 - Encapsulations, p. ex. couches d’encapsulation, revêtements caractérisées par leur disposition
H03L 7/00 - Commande automatique de fréquence ou de phaseSynchronisation
H03L 1/04 - Détails structurels destinés à maintenir la température constante
H01L 23/00 - Détails de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide
An electronic device includes at least two boards and support pillars. The at least two boards include hole portions. The support pillars inserted into the hole portions such that the at least two boards are held mutually separated. The hole portions include tapered surfaces that incline toward center portions of the hole portions from a surface on a side from which the support pillars of the boards are inserted.
H05K 7/00 - Détails de construction communs à différents types d'appareils électriques
H05K 5/00 - Enveloppes, coffrets ou tiroirs pour appareils électriques
H01L 21/8238 - Transistors à effet de champ complémentaires, p.ex. CMOS
H01L 23/522 - Dispositions pour conduire le courant électrique à l'intérieur du dispositif pendant son fonctionnement, d'un composant à un autre comprenant des interconnexions externes formées d'une structure multicouche de couches conductrices et isolantes inséparables du corps semi-conducteur sur lequel elles ont été déposées
H01L 23/00 - Détails de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide
H01L 27/092 - Transistors à effet de champ métal-isolant-semi-conducteur complémentaires
H01L 29/10 - Corps semi-conducteurs caractérisés par les formes, les dimensions relatives, ou les dispositions des régions semi-conductrices avec des régions semi-conductrices connectées à une électrode ne transportant pas le courant à redresser, amplifier ou commuter, cette électrode faisant partie d'un dispositif à semi-conducteur qui comporte trois électrodes ou plus
An electronic device includes a first board, a second board, and support pillars. The support pillars hold the first board and the second board mutually separated. The first board has a first surface on which an electronic component is mounted. The first board has a second surface that includes depressed portions into which the support pillars extending from the second board are inserted.
H01L 23/049 - ConteneursScellements caractérisés par la forme le conteneur étant une structure creuse ayant une base conductrice qui sert de support et en même temps de connexion électrique pour le corps semi-conducteur les autres connexions étant perpendiculaires à la base
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
H03H 3/02 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques pour la fabrication de résonateurs ou de réseaux piézo-électriques ou électrostrictifs
H03H 9/02 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiquesRésonateurs électromécaniques Détails
79.
Crystal oscillator and method for manufacturing crystal oscillator
A crystal oscillator includes a quartz crystal piece, a semiconductor chip, and a temperature sensor. The semiconductor chip includes an oscillator circuit to cause the quartz crystal piece to oscillate and a first bump. The first bump is connected to the oscillator circuit and disposed on a surface of the semiconductor chip facing the quartz crystal piece. The temperature sensor is bonded to the first bump.
H03L 1/04 - Détails structurels destinés à maintenir la température constante
H03L 1/02 - Stabilisation du signal de sortie du générateur contre les variations de valeurs physiques, p. ex. de l'alimentation en énergie contre les variations de température uniquement
H03H 9/02 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiquesRésonateurs électromécaniques Détails
VCO of the frequency synthesizer 1 such that a spurious frequency does not exist within a predetermined frequency range and a dividing number of a variable frequency divider 302 disposed on a PLL circuit 3 is minimum. Setting units 11 and 24 read setting items stored in the storage unit 12 to set respective units.
H03B 21/00 - Production d'oscillations par combinaison de signaux non modulés de fréquences différentes
H03L 7/18 - Synthèse de fréquence indirecte, c.-à-d. production d'une fréquence désirée parmi un certain nombre de fréquences prédéterminées en utilisant une boucle verrouillée en fréquence ou en phase en utilisant un diviseur de fréquence ou un compteur dans la boucle
H03L 7/091 - Détails de la boucle verrouillée en phase concernant principalement l'agencement de détection de phase ou de fréquence, y compris le filtrage ou l'amplification de son signal de sortie le détecteur de phase ou de fréquence utilisant un dispositif d'échantillonnage
H03L 7/183 - Synthèse de fréquence indirecte, c.-à-d. production d'une fréquence désirée parmi un certain nombre de fréquences prédéterminées en utilisant une boucle verrouillée en fréquence ou en phase en utilisant un diviseur de fréquence ou un compteur dans la boucle une différence de temps étant utilisée pour verrouiller la boucle, le compteur entre des nombres fixes ou le diviseur de fréquence divisant par un nombre fixe
A crystal resonator includes a crystal element and excitation electrodes. The crystal element has a pair of principal surfaces parallel to an X′-axis and a Z′-axis. The X′-axis is an axis of rotating an X-axis as a crystallographic axis of a crystal in a range of 15 degrees to 25 degrees around a Z-axis as a crystallographic axis of the crystal. The Z′-axis is an axis of rotating the Z-axis in a range of 33 degrees to 35 degrees around the X′-axis. The excitation electrodes are formed on the respective principal surfaces of the crystal element. Elliptical mesa portions or elliptical inverted mesa portions are formed on the respective principal surfaces. The mesa portions project from outer peripheries of the principal surfaces. The inverted mesa portions are depressed from the outer peripheries of the principal surfaces.
H03H 9/17 - Détails de réalisation de résonateurs se composant de matériau piézo-électrique ou électrostrictif ayant un résonateur unique
H03H 3/04 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques pour la fabrication de résonateurs ou de réseaux piézo-électriques ou électrostrictifs pour obtenir une fréquence ou un coefficient de température désiré
H03H 9/02 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiquesRésonateurs électromécaniques Détails
One side of the surfaces of the crystal resonator 4 including an adsorbing film 46 that absorbs a sensing object on an excitation electrode 42A is pressed with the channel forming member 5 using the upper-side cover body 21 to form a channel 57, which runs from one end side to the other end side on one side of surfaces of the crystal resonator 4. A depressed portion 84 is disposed in at least one of: a position opposed to the channel 57 and at a surface on an opposite side of the channel 57 in the channel forming member 5, and a position opposed to the channel 57 and at a surface on the opposite side of the channel 57 in the pressing member with respect to the channel forming member 5.
An oscillator circuit includes an oscillating unit, a counter unit, and a set value generator. The oscillating unit is configured to output an oscillation signal having a frequency corresponding to an input frequency setting value. The counter unit is configured to count a number of pulses of the oscillation signal during a time period corresponding to a period of a reference signal input from outside. The set value generator is configured to generate the frequency setting value every predetermined time period based on the count of the pulses counted by the counter unit.
H03L 7/18 - Synthèse de fréquence indirecte, c.-à-d. production d'une fréquence désirée parmi un certain nombre de fréquences prédéterminées en utilisant une boucle verrouillée en fréquence ou en phase en utilisant un diviseur de fréquence ou un compteur dans la boucle
H03L 7/08 - Détails de la boucle verrouillée en phase
H03L 7/095 - Détails de la boucle verrouillée en phase concernant principalement l'agencement de détection de phase ou de fréquence, y compris le filtrage ou l'amplification de son signal de sortie utilisant un détecteur de verrouillage
H03L 7/099 - Détails de la boucle verrouillée en phase concernant principalement l'oscillateur commandé de la boucle
An oven controlled crystal oscillator includes a crystal oscillator, a temperature control circuit, and a control integrated circuit. The crystal oscillator includes a crystal resonator and an oscillator circuit. The temperature control circuit includes a heater resistor, a thermistor, a first resistor, a second resistor, a third resistor, a differential amplifier, a thermosensor, and a fourth resistor. The thermosensor is disposed in parallel to the first resistor. The thermosensor has one end to which the supply voltage is supplied. The fourth resistor has one end connected to another end of the thermosensor and another end that is grounded. The control integrated circuit includes a digital variable resistor and a controller. The digital variable resistor is connected to the thermosensor in parallel. The controller adjusts a resistance value of the digital variable resistor based on a digital control signal input from outside.
H03B 5/36 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique l'élément actif de l'amplificateur comportant un dispositif semi-conducteur
H03L 1/02 - Stabilisation du signal de sortie du générateur contre les variations de valeurs physiques, p. ex. de l'alimentation en énergie contre les variations de température uniquement
H03L 1/04 - Détails structurels destinés à maintenir la température constante
G05D 23/24 - Commande de la température caractérisée par l'utilisation de moyens électriques avec un élément sensible présentant une variation de ses propriétés électriques ou magnétiques avec les changements de température l'élément sensible ayant une résistance variant avec la température, p. ex. une thermistance
A crystal oscillator includes a surface mount type crystal unit and a mounting substrate. The surface mount type crystal unit includes a ceramic container. The surface mount type crystal unit has a rectangular shape as a planar shape. The mounting substrate includes a ceramic substrate on which an electronic component is mounted, the mounting substrate having a rectangular shape as a planar shape. The crystal oscillator has a structure where the surface mount type crystal unit and the mounting substrate are laminated, and both terminals of the surface mount type crystal unit and the mounting substrate are connected with a bonding material. The mounting substrate and the surface mount type crystal unit are connected in a positional relationship where a long side of the mounting substrate and a long side of the surface mount type crystal unit are orthogonal.
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
A signal processing device includes a plurality of converters, a generator, a distributor, a first line, and a second line. A plurality of converters is configured to convert analog signals to digital signals based on a clock signal to output the digital signals. The generator is configured to generate the clock signal based on a reference signal. The distributor is configured to distribute a generated clock signal to the plurality of converters. The first line passes through only a region assigned to each of the plurality of converters to supply the analog signal to the converter. The second line passes through only the region to supply a distributed clock signal to the converter.
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
H03L 7/08 - Détails de la boucle verrouillée en phase
H03K 19/177 - Circuits logiques, c.-à-d. ayant au moins deux entrées agissant sur une sortieCircuits d'inversion utilisant des éléments spécifiés utilisant des circuits logiques élémentaires comme composants disposés sous forme matricielle
H03M 1/34 - Valeur analogique comparée à des valeurs de référence
87.
AT-cut crystal element, crystal resonator and crystal unit
An AT-cut crystal element includes a crystal element having two side surfaces (namely, a Z′-surface) intersecting with a Z-axis of a crystallographic axis thereof. At least one of the two side surfaces is constituted of three of first to third surfaces. The first to the third surfaces meeting following conditions: the first to the third surfaces intersect with one another in this order and formed by rotating a principal surface of the crystal element by predetermined angles; and expressing the angle of the first surface as θ1, a length of the first surface as D, a thickness of a part of the crystal element having the principal surface as t, and M=D/t, and a conversion percentage as fn (M, (θ1)), the θ1 and the M are set such that the conversion percentage fn (M, (θ1)) becomes a predetermined value Th or less.
A piezoelectric vibrating piece includes a vibrating piece body including a vibrator and at least one pair of excitation electrodes formed on a front surface and a back surface of the vibrator. The vibrating piece body is a twice rotated quartz-crystal vibrating piece. The pair of excitation electrodes are arranged in a Z′″-axis direction determined by an X′″-axis and obliquely disposed with respect to the Y″-axis direction. The X′″-axis is rotated by 260° to 300° counterclockwise about a Y″-axis using a +X″-axis direction as a reference. The pair of excitation electrodes are formed to have respective semicircle shapes including straight line portions extending in the X′″-axis direction and to be disposed in a state where the straight line portions overlapping with one another. The straight line portion of the excitation electrode includes an inclined portion that gradually decreases in thickness toward an end portion of the excitation electrode.
H03H 9/19 - Détails de réalisation de résonateurs se composant de matériau piézo-électrique ou électrostrictif ayant un résonateur unique en quartz
B06B 1/06 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore utilisant l'énergie électrique fonctionnant par effet piézo-électrique ou par électrostriction
H03H 9/02 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiquesRésonateurs électromécaniques Détails
H03H 9/13 - Moyens d'excitation, p. ex. électrodes, bobines pour réseaux se composant de matériaux piézo-électriques ou électrostrictifs
89.
Oscillator for detecting temperature of atmosphere
An oscillator detects a temperature of an atmosphere where a crystal resonator for an oscillation output is placed using a temperature detector to stabilize the temperature by controlling a temperature of a heater based on a temperature detection value. The device includes a buffer amplifier interposed in a signal path of a control signal generated based on the temperature detection value, a heater disposed such that a collector and an emitter position between a power source unit and a ground and constituted of a transistor having a base connected to an output port of the buffer amplifier, and a first differential amplifier disposed to adjust a gain of the buffer amplifier to cancel voltage fluctuation of the power source unit and amplifying a difference between a voltage corresponding to the supply voltage and a preliminarily set voltage to input to a gain adjustment port of the buffer amplifier.
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
H03L 7/08 - Détails de la boucle verrouillée en phase
H03B 5/04 - Modifications du générateur pour compenser des variations dans les grandeurs physiques, p. ex. alimentation, charge, température
H03L 1/02 - Stabilisation du signal de sortie du générateur contre les variations de valeurs physiques, p. ex. de l'alimentation en énergie contre les variations de température uniquement
H03L 7/099 - Détails de la boucle verrouillée en phase concernant principalement l'oscillateur commandé de la boucle
H03L 7/24 - Commande automatique de fréquence ou de phaseSynchronisation utilisant un signal de référence directement appliqué au générateur
H03B 5/36 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique l'élément actif de l'amplificateur comportant un dispositif semi-conducteur
90.
Piezoelectric vibrating piece and piezoelectric device
A piezoelectric vibrating piece includes a vibrating piece body and at least a pair of excitation electrodes. The vibrating piece body includes a vibrator. The pair of excitation electrodes are formed on respective front surface and back surface of the vibrator. The vibrating piece body is a twice rotated quartz-crystal vibrating piece cut out parallel to an X″-Z″ surface. The X″-Z″ surface is rotated around a Z-axis of a crystallographic axis of a crystal and further rotated around an X′-axis. The pair of excitation electrodes are collocated in a Z′″-axis direction determined by an X′″-axis. The X′″-axis is defined by counterclockwise rotation from a +X″-axis direction around a Y″-axis by 260° to 300°. The pair of excitation electrodes are disposed inclined with respect to the Y″-axis direction.
During normal and reverse swings of a transducer main body, an engagement accuracy is ensured to reduce generation of vibration and noise. An ultrasonic transducer includes: a coupling swingably and loosely fitted between one end portion of an output shaft of a power source that swings the transducer main body and the transducer main body, and a flywheel swingably and loosely fitted to another end portion of an output shaft of the power source, ensuring the reduced vibration and noise from the transducer main body.
A61B 8/12 - Diagnostic utilisant des ondes ultrasonores, sonores ou infrasonores dans des cavités ou des conduits du corps, p. ex. en utilisant des cathéters
F16D 3/68 - Accouplements extensibles, c.-à-d. avec moyens permettant le mouvement entre parties accouplées durant leur entraînement avec pièces d'accouplement reliées par un ou plusieurs organes intermédiaires comportant des éléments élastiques disposés entre les parois sensiblement radiales des deux pièces d'accouplement les éléments étant en caoutchouc ou faits d'un matériau similaire
A61B 8/00 - Diagnostic utilisant des ondes ultrasonores, sonores ou infrasonores
A crystal unit includes an AT-cut crystal element and a container. The AT-cut crystal element has an approximately rectangular planar shape. The AT-cut crystal element includes a first inclined portion, second inclined portions, and a first secured portion. The first inclined portion is inclined such that the crystal element decreases in thickness from a proximity of the first side to the first side. The second inclined portions are disposed on respective both ends of the first side, the second inclined portions being formed integrally with the first inclined portion. The second inclined portions are inclined gentler than the first inclined portion. The first secured portion and a second secured portion are formed integrally with the second inclined portion. The first secured portion and the second secured portion each project out from the first side to outside the crystal element to be used for securing with the securing members.
H03H 3/02 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques pour la fabrication de résonateurs ou de réseaux piézo-électriques ou électrostrictifs
H03H 9/02 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiquesRésonateurs électromécaniques Détails
H03H 9/19 - Détails de réalisation de résonateurs se composant de matériau piézo-électrique ou électrostrictif ayant un résonateur unique en quartz
A crystal unit includes an AT-cut crystal element, excitation electrodes, extraction electrodes. The AT-cut crystal element has an approximately rectangular planar shape. The excitation electrodes are disposed on front and back of principal surfaces of the AT-cut crystal element. The extraction electrodes are extended from the excitation electrodes to a side of one side of the AT-cut crystal element via a side surface of the AT-cut crystal element. Assuming that an extraction angle of the extraction electrode from the principal surface to the side surface is defined as an angle θ with respect to an X-axis of a crystallographic axis of a crystal, the angle θ is equal to or greater than 59 degrees and equal to or less than 87 degrees.
H03H 9/19 - Détails de réalisation de résonateurs se composant de matériau piézo-électrique ou électrostrictif ayant un résonateur unique en quartz
H03H 9/13 - Moyens d'excitation, p. ex. électrodes, bobines pour réseaux se composant de matériaux piézo-électriques ou électrostrictifs
H03H 3/02 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques pour la fabrication de résonateurs ou de réseaux piézo-électriques ou électrostrictifs
H03H 9/02 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiquesRésonateurs électromécaniques Détails
An oven controlled crystal oscillator that ensures reduced heat influence from outside to further stabilize an output frequency is provided. The oven controlled crystal oscillator includes a substrate secured above a base. The oven controlled crystal oscillator includes an oscillator circuit, a heater resistor, and a power transistor, which are mounted on the substrate. The oven controlled crystal oscillator includes pins that secures the substrate above the base at a predetermined interval, a metal cover that covers the oscillator circuit, the heater resistor, and the power transistor, and a resin cover that covers outside of the metal cover. An air layer is formed between the metal cover and the resin cover.
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
H03L 1/02 - Stabilisation du signal de sortie du générateur contre les variations de valeurs physiques, p. ex. de l'alimentation en énergie contre les variations de température uniquement
H03L 1/04 - Détails structurels destinés à maintenir la température constante
Providing an OCXO having a highly stabilized output frequency. In an oscillator, which is an OCXO, crystal resonators, oscillator circuits, a temperature detector, and a heater circuit are disposed inside a first container, which is supported in a state of floating inside a second container, while a voltage stabilizer circuit for stabilizing a supply voltage supplied to the heater circuit is disposed apart from the first container inside the second container. Therefore, the supply voltage supplied to the heater circuit is stabilized. The voltage stabilizer circuit is less likely to be affected by heat generation of the heater circuit, thus obtaining a stable oscillation frequency output regardless of the environmental temperature.
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
H03L 1/02 - Stabilisation du signal de sortie du générateur contre les variations de valeurs physiques, p. ex. de l'alimentation en énergie contre les variations de température uniquement
H03L 1/04 - Détails structurels destinés à maintenir la température constante
H03L 7/08 - Détails de la boucle verrouillée en phase
H03L 7/24 - Commande automatique de fréquence ou de phaseSynchronisation utilisant un signal de référence directement appliqué au générateur
An oscillator includes a front side voltage divider, a rear side voltage divider, and an oscillation unit. The front side voltage divider includes a first resistor connected between a first and second potential sources, and a first output terminal configured to changeably connect to a connection position in the first resistor so as to vary an obtained output voltage. The rear side voltage divider includes a second resistor connected between the first output terminal and a third potential source; and a second output terminal configured to changeably connect to a connection position in the second resistor so as to vary an obtained output voltage. The oscillation unit includes a variable capacitance element with a capacitance varied according to the output voltage from the second output terminal. The oscillation unit varies an output frequency based on a variation in a resonance point associated with a variation in the capacitance.
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
H03B 5/04 - Modifications du générateur pour compenser des variations dans les grandeurs physiques, p. ex. alimentation, charge, température
H03L 1/02 - Stabilisation du signal de sortie du générateur contre les variations de valeurs physiques, p. ex. de l'alimentation en énergie contre les variations de température uniquement
H03L 1/00 - Stabilisation du signal de sortie du générateur contre les variations de valeurs physiques, p. ex. de l'alimentation en énergie
H03B 5/36 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique l'élément actif de l'amplificateur comportant un dispositif semi-conducteur
The purpose of the present invention is to provide an oscillation device capable of outputting a frequency signal that accurately reflects the result of temperature adjustment by a heater circuit. An oscillation device 1A outputs a frequency signal of a preset frequency, a crystal oscillator 10a connected to an oscillation circuit 1 is housed in an oscillator cover 111, and the crystal oscillator 10a is disposed above a substrate 31 within a container 41 by soldering the oscillator cover 111 onto the substrate 31 within the container 41. A heater circuit 50 adjusts the temperature within the container 41 on the basis of a temperature detected by a temperature detection unit 53. In this case, the oscillator cover 111 housing the crystal oscillator 10a is formed from phosphorous deoxidized copper.
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
98.
Crystal oscillator and method of manufacturing crystal oscillators
An crystal resonator includes a first oscillating circuit that oscillates a crystal resonator at a first frequency, a first impedance adjusting circuit that adjusts an impedance of a first oscillating system including the crystal resonator and the first oscillating circuit, a second oscillating circuit that oscillates the crystal resonator at a second frequency that is different from the first frequency, a second impedance adjusting circuit that adjusts an impedance of a second oscillating system including the crystal resonator and the second oscillating circuit, and a controlling circuit that controls the first impedance adjusting circuit and the second impedance adjusting circuit.
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
H03L 1/02 - Stabilisation du signal de sortie du générateur contre les variations de valeurs physiques, p. ex. de l'alimentation en énergie contre les variations de température uniquement
H03H 9/24 - Détails de réalisation de résonateurs en matériau qui n'est ni piézo-électrique, ni électrostrictif, ni magnétostrictif
H03B 5/36 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique l'élément actif de l'amplificateur comportant un dispositif semi-conducteur
Provided is a novel AT cut quartz piece in which unnecessary vibration other than vibration originating from an AT cut quartz vibrator can be suppressed, and the impedance of the vibrator improved, in comparison with the prior art. The two side surfaces that intersect with the Z’ quartz crystal axis are configured with three surfaces: a first surface 11a, which is the m surface of the quartz crystal; a second surface 11b, which meets with the first surface but is not the m surface; and a third surface, which meets with the second surface 11b, but is not the m surface. Also, the second surface 11b corresponds to a surface in which the main surface 11d of the AT cut quartz piece is rotated –74±3° about the X-axis of the quartz crystal as a rotation axis, and the third surface 11bc corresponds to a surface in which the main surface 11d is rotated –56±3° about the X-axis of the quartz crystal as a rotation axis.
The present invention suppresses interference between wiring patterns in an oscillator that outputs multiple oscillation signals. An oscillator 1 is provided with: an IC 20 capable of outputting multiple oscillation signals using a crystal oscillator 10; and a substrate unit 31 connected to the IC 20. The substrate unit 31 has: an oscillator land 32a and an oscillator land 32e, which are electrically connected to the crystal oscillator 10; a power supply land 32c, which is electrically connected to a power supply; and a first output land 32b, which is positioned between the oscillator land 32a and the power supply land 32c, and which externally outputs a first oscillation signal from the IC 20. The wiring pattern 33b from the first output land 32b passes between the oscillator land 32a and the oscillator land 32e.
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
