12122 being smaller than the wavelength λ of the acoustic wave such that a Lamb wave (Lb1, Lb2, Lb3) is excitable in the housing (1), wherein the piezoelectric transducers (3.1, 3.2) are each configured to receive an acoustic wave in the form of a Lamb wave (Lb1, Lb3) from the housing, wherein the piezoelectric transducers (3.1, 3.2) each exhibit a height (H) and a width (W), wherein the height (H) is larger than the width (W).
G01F 1/66 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
G01F 1/667 - Arrangements of transducers for ultrasonic flowmetersCircuits for operating ultrasonic flowmeters
A pressure measuring cell is described, including a support body and a circular-shaped membrane including a first surface and a second surface, the support body supporting the circular-shaped membrane, wherein the pressure measuring cell further includes a plurality of strain sensitive resistors arranged on the second surface of the circular-shaped membrane and connected in a Wheatstone bridge circuit, wherein at least one strain sensitive resistor is an arc-shaped resistor including an arc-shaped surface area that is radially delimited by an inner circular arc and an outer circular arc.
G01L 9/04 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in ohmic resistance, e.g. of potentiometers of resistance strain gauges
G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
A pressure measuring cell is described, including a membrane with a first surface and a second surface, and a support body, the support body including a cavity which is transversely delimited by an inner surface of the support body and axially delimited at a first side by the first surface of the membrane and open at a second side opposite to the first side to form a trough-shaped chamber for accommodating a measurement medium, wherein the inner surface of the support body is shaped such that a transverse diameter of the trough-shaped chamber at the second side of the cavity is larger than the transverse diameter at the first side of the cavity.
G01L 19/06 - Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
B01D 53/92 - Chemical or biological purification of waste gases of engine exhaust gases
F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion
A metal pressure measuring cell for absolute pressure sensing is described, including a metal base body with a membrane and a support body. The membrane includes a first surface and a second surface. The support body includes a cavity which is transversely delimited by an inner surface of the support body and axially delimited at a first side by the first surface of the membrane and open at a second side opposite to the first side to form a trough-shaped chamber for accommodating a measurement medium. The pressure measuring cell further includes a cap mounted on the base body and covering the second surface of the membrane such that a hermetically closed pressure reference volume is formed between the cap and the second surface of the membrane, wherein the cap is made of metal.
G01L 13/02 - Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
A pressure measuring cell (5) is described, comprising a support body (5.3), a membrane (5.2) supported by the support body and a measurement circuit (5.1), the measurement circuit comprising a plurality of strain sensitive resistors (R1a-b, R2, R3, R4a-b) connected in a Wheatstone bridge circuit, wherein the measurement circuit comprises a temperature-balancing network comprising a first temperature-balancing auxiliary resistor (R61) connected to a first strain sensitive resistor (R1, R1a) of the Wheatstone bridge circuit and a second temperature-balancing auxiliary resistor (R62) connected to a second strain sensitive resistor (R2) of the Wheatstone bridge circuit, the temperature-balancing network further comprising a joint thermistor (PTC) connected between the first and second temperature-balancing auxiliary resistors.
G01L 1/22 - Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluidsMeasuring force or stress, in general by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
G01L 9/04 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in ohmic resistance, e.g. of potentiometers of resistance strain gauges
A sensor assembly is provided including a housing including a tubular portion, a membrane, a cable, an ultrasonic sensor, and a further sensor. The tubular portion includes a first end. The tubular portion connects to the membrane at the first end of the tubular portion. The ultrasonic sensor includes a piezoelectric transducer and a wrap-around electrode. The piezoelectric transducer includes a first side and a second side, the second side of the piezoelectric transducer being disposed opposite the first side of the piezoelectric transducer. The first side of the piezoelectric transducer is mounted to the membrane. The wrap-around electrode includes a first side and a second side, the second portion of the wrap-around electrode being disposed opposite the first portion of the wrap-around electrode.
G01F 1/66 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
G01F 1/667 - Arrangements of transducers for ultrasonic flowmetersCircuits for operating ultrasonic flowmeters
G01F 15/02 - Compensating or correcting for variations in pressure, density, or temperature
H10N 30/30 - Piezoelectric or electrostrictive devices with mechanical input and electrical output, e.g. functioning as generators or sensors
H10N 30/87 - Electrodes or interconnections, e.g. leads or terminals
A pressure measuring cell (10) is described, comprising a support body (12) and a circular-shaped membrane (13) with a first surface and a second surface, the support body supporting the membrane, wherein the pressure measuring cell further comprises a plurality of strain sensitive resistors (141-144) arranged on the second surface of the membrane and connected in a Wheatstone bridge circuit (14), wherein at least one strain sensitive resistor is an arc-shaped resistor (141-144) comprising an arc-shaped surface area that is radially delimited by an inner circular arc (1411, 1421) and an outer circular arc (1412, 1422).
G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
G01L 9/04 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in ohmic resistance, e.g. of potentiometers of resistance strain gauges
A flow meter (1) is described, comprising a housing (11) with a longitudinal axis (L) and defining a flow channel (12) for a fluid flow, a first and a second ultrasonic transducer (15; 16) arranged at the flow channel and each configured to emit and receive ultrasonic signal into and from the flow channel, a first ultrasonic reflecting device (13) arranged at an outer surface (110) of the housing and opposite to the first ultrasonic transducer with respect to the flow channel, a second ultrasonic reflecting device (14) arranged at the outer surface of the housing and opposite to the second ultrasonic transducer with respect to the flow channel, wherein the first and second ultrasonic transducers and the first and second ultrasonic reflecting devices are arranged to guide an ultrasonic signal (USW) emitted by one of the first or second ultrasonic transducer and received by the other of the first or second ultrasonic transducer along a W-shaped path.
A pressure measuring cell (1') is described, comprising a membrane (1.1') with a first surface (1.11') and a second surface, and a support body (1.2'), the support body comprising a cavity (1.21') which is transversely delimited by an inner surface (1.213') of the support body and axially delimited at a first side (1.211') by the first surface of the membrane and open at a second side (1.212') opposite to the first side to form a trough-shaped chamber (1.21) for accommodating a measurement medium, wherein the inner surface of the support body is shaped such that a transverse diameter (D') of the trough-shaped chamber at the second side of the cavity is larger than the transverse diameter (D') at the first side of the cavity.
G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
G01L 19/00 - Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
G01L 19/06 - Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
A pressure measuring cell (1') is described, comprising a membrane (1.1') with a first surface (1.11') and a second surface, and a support body (1.2'), the support body comprising a cavity (1.21') which is transversely delimited by an inner surface (1.213') of the support body and axially delimited at a first side (1.211') by the first surface of the membrane and open at a second side (1.212') opposite to the first side to form a trough-shaped chamber (1.21) for accommodating a measurement medium, wherein the inner surface of the support body is shaped such that a transverse diameter (D') of the trough-shaped chamber at the second side of the cavity is larger than the transverse diameter (D') at the first side of the cavity.
G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
G01L 19/00 - Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
G01L 19/06 - Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
A metal pressure measuring cell (1) for absolute pressure sensing is described, comprising a metal base body (11) with a membrane (12) and a support body (13), the membrane comprising a first surface (14) and a second surface (15), the support body comprising a cavity (16) which is transversely delimited by an inner surface (17) of the support body and axially delimited at a first side (18) by the first surface of the membrane and open at a second side (19) opposite to the first side to form a trough- shaped chamber (16) for accommodating a measurement medium, the pressure measuring cell further comprising a cap (20) mounted on the base body and covering the second surface of the membrane such that a hermetically closed pressure reference volume (21) is formed between the cap and the second surface of the membrane, wherein the cap is made of metal.
G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
G01L 13/02 - Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
A metal pressure measuring cell (1) for absolute pressure sensing is described, comprising a metal base body (11) with a membrane (12) and a support body (13), the membrane comprising a first surface (14) and a second surface (15), the support body comprising a cavity (16) which is transversely delimited by an inner surface (17) of the support body and axially delimited at a first side (18) by the first surface of the membrane and open at a second side (19) opposite to the first side to form a trough- shaped chamber (16) for accommodating a measurement medium, the pressure measuring cell further comprising a cap (20) mounted on the base body and covering the second surface of the membrane such that a hermetically closed pressure reference volume (21) is formed between the cap and the second surface of the membrane, wherein the cap is made of metal.
G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
G01L 13/02 - Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
A sensor assembly (1) comprising a housing (3a, 3b) comprising a tubular portion (3b), a membrane (4), a cable (5), an ultrasonic sensor (6), and a further sensor (2); wherein the tubular portion (3b) comprises a first end; wherein the tubular portion (3b) connects to the membrane (4) at the first end of the tubular portion (3b); wherein the ultrasonic sensor (6) comprises a piezoelectric transducer and a wrap-around electrode; wherein the piezoelectric transducer comprises a first side and a second side, the second side of the piezoelectric transducer being disposed opposite the first side of the piezoelectric transducer; wherein the first side of the piezoelectric transducer is mounted to the membrane (4); wherein the wrap-around electrode comprises a first side and a second side, the second portion of the wrap-around electrode being disposed opposite the first portion of the wraparound electrode.
G01F 1/66 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
A sensor assembly (1) comprising a housing (3a, 3b) comprising a tubular portion (3b), a membrane (4), a cable (5), an ultrasonic sensor (6), and a further sensor (2); wherein the tubular portion (3b) comprises a first end; wherein the tubular portion (3b) connects to the membrane (4) at the first end of the tubular portion (3b); wherein the ultrasonic sensor (6) comprises a piezoelectric transducer and a wrap-around electrode; wherein the piezoelectric transducer comprises a first side and a second side, the second side of the piezoelectric transducer being disposed opposite the first side of the piezoelectric transducer; wherein the first side of the piezoelectric transducer is mounted to the membrane (4); wherein the wrap-around electrode comprises a first side and a second side, the second portion of the wrap-around electrode being disposed opposite the first portion of the wraparound electrode.
G01F 1/66 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
09 - Scientific and electric apparatus and instruments
Goods & Services
Pressure transmitters, pressure switches, flow sensors, pressure indicators, pressure sensors, flow meters, electronic transmitters and electronic receivers for sending and receiving signals and data regarding liquid and gas flow, liquid and gas pressure and force measurements, underwater probes for measuring liquid and gas pressure
Various embodiments include a capacitive pressure transducer for measuring the pressure of a medium adjacent to the transducer comprising: a measurement diaphragm including a first surface in contact with the medium and a second surface facing away from the medium; a measurement electrode integrated with the measurement diaphragm; a base body arranged opposite the second surface, the base body comprising a counter electrode forming a measurement capacitance with the measurement electrode; and an electrically insulating chamber bounded by the base body and the measurement diaphragm. The counter electrode is in contact with the electrically insulating chamber. At least one of the measurement electrode or the counter electrode comprises a meandering pattern layer in direct contact with the electrically insulating chamber.
G01L 9/12 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in capacitance
G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
H01G 5/18 - Capacitors in which the capacitance is varied by mechanical means, e.g. by turning a shaftProcesses of their manufacture using variation of distance between electrodes due to change in inclination, e.g. by flexing, by spiral wrapping
The present disclosure includes a pressure transducer comprising: a frame; a cantilevered beam; a resilient beam portion; a signal processing circuit; a wiring terminal; and a support member. The resilient beam portion anchors the cantilevered beam to the frame. The cantilevered beam moves in response to a pressure-induced force applied to the cantilevered beam and the resilient beam portion bends producing a strain within the resilient beam portion. The support member comprises a cavity and the signal processing circuit is entirely installed inside the cavity. There is a strain gauge diffused into, implanted into, and/or affixed to the resilient beam portion. The cavity of the support member includes a first aperture disposed along the first surface of the support member and the inner surface of the frame covers the first aperture.
G01L 1/04 - Measuring force or stress, in general by measuring elastic deformation of gauges, e.g. of springs
G01L 1/22 - Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluidsMeasuring force or stress, in general by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
G01L 7/08 - Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges of the flexible-diaphragm type
G01L 13/06 - Devices or apparatus for measuring differences of two or more fluid pressure values using electric or magnetic pressure-sensitive elements
G01L 19/02 - Arrangements for preventing, or for compensating for, effects of inclination or acceleration of the measuring deviceZero-setting means
G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
G01L 19/00 - Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
G01L 13/02 - Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Electric signaling, measuring, counting, recording,
monitoring, controlling, regulating and switching apparatus;
electric apparatus for encoding, processing, transmitting,
storing and restoring data; electronic instruments and
apparatus for data input and controllers; electronic
apparatus and instruments for electric systems for energy
transmission and distribution for transmitting electrical
energy; electric and electronic apparatus and instruments
for the field of techniques for measuring pressure,
particularly pressure transmitters, force sensors, flow
sensors, pressure switches, underwater probes; data
processing apparatus and computers and computer peripherals;
data processing programs; all the aforesaid goods for data
communication via wired and wireless remote transmission
networks for remote transmission of data and for data
transmission on local networks. Technical planning and technical development of
installations, devices and apparatus in the field of
pressure measuring technology; creation of programs for data
processing and process engineering in the field of pressure
measuring technology.
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Electric signaling, measuring, counting, recording,
monitoring, controlling, regulating and switching apparatus;
electric apparatus for encoding, processing, transmitting,
storing and restoring data; electronic instruments and
apparatus for data input and controllers; electronic
apparatus and instruments for electric systems for energy
transmission and distribution for transmitting electrical
energy; electric and electronic apparatus and instruments
for the field of techniques for measuring pressure,
particularly pressure transmitters, force sensors, flow
sensors, pressure switches, underwater probes; data
processing apparatus and computers and computer peripherals;
data processing programs; all the aforesaid goods for data
communication via wired and wireless remote transmission
networks for remote transmission of data and for data
transmission on local networks. Technical planning, research and technical development of
installations, devices and apparatus in the field of
pressure measuring technology; technical consultancy and
technical expertise in the field of pressure measuring
technology; creation of programs for data processing and
process engineering in the field of pressure measuring
technology.
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Electric and electronic apparatus and instruments for flow, pressure and force measurement, namely, pressure indicators, pressure recorders, pressure sensors, pressure transmitters, pressure switches, flow meters, flow sensors, flow switches for monitoring and controlling the flow of gases and liquids, force sensors, electronic transmitters and electronic receivers for sending and receiving signals and data regarding flow, pressure and force measurements, and underwater probes for measuring pressure; [ data processing apparatus and computers and computer peripherals; data processing programs for use in recording and processing data relating to flow, pressure and force measurements and for controlling devices and apparatus used in flow, pressure and force measurement; ] all the aforesaid goods for data communication via wired and wireless remote transmission networks for remote transmission of data and for data transmission on local networks Engineering services, namely, technical planning, research and technical development of installations, devices and apparatus in the field of pressure measuring technology; technical consultancy and technical expertise in the field of pressure measuring technology [ ; creation, namely, design and development of computer programs for data processing and process engineering in the field of pressure measuring technology ]
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Electric and electronic apparatus and instruments for flow, pressure and force measurement, namely, pressure indicators, pressure recorders, pressure sensors, pressure transmitters, pressure switches, flow meters, flow sensors, flow switches for monitoring and controlling the flow of gases and liquids, force sensors, electronic transmitters and electronic receivers for sending and receiving signals and data regarding flow, pressure and force measurements, and underwater probes for measuring pressure; [ data processing apparatus and computers and computer peripherals; data processing programs for use in recording and processing data relating to flow, pressure and force measurements and for controlling devices and apparatus used in flow, pressure and force measurement; ] all the aforesaid goods for data communication via wired and wireless remote transmission networks for remote transmission of data and for data transmission on local networks Engineering services, namely, technical planning, research and technical development of installations, devices and apparatus in the field of pressure measuring technology; technical consultancy and technical expertise in the field of pressure measuring technology [ ; creation, namely, design and development of computer programs for data processing and process engineering in the field of pressure measuring technology ]
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Electric signaling, measuring, counting, recording, monitoring, controlling, regulating and switching devices; Electric apparatus for the input, processing, transmission, storage and output of data; Electronic instruments and Data logging apparatus and Controller; Electronic instruments and apparatus for electric energy transfer and distribution systems for the transfer of electrical energy; Electronic and Electric instruments and Apparatus for measuring pressure, In particular pressure transmitters,Pressure-measuring cells, Flow sensors, Pressure switches,Immersion probes; Data processing equipment and computers and peripheral devices therefor; Data-processing programs; The aforesaid goods being for data communications via cable and wireless telecommunications networks, for remote data transmission and for data transmission on local networks. Technical planning, research and technical development of installations, equipment and apparatus in the field of pressure measuring technology; Technical consultancy and technical expertise in the field of pressure measuring technology; Creation of data-processing programs and Process technology in the field of pressure measurement technology.
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Electric signaling, measuring, counting, recording, monitoring, controlling, regulating and switching devices; Electric apparatus for the input, processing, transmission, storage and output of data; Electronic instruments and Data logging apparatus and Controller; Electronic instruments and apparatus for electric energy transfer and distribution systems for the transfer of electrical energy; Electronic and electric instruments and apparatus for the field of pressure measuring technology, in particular pressure transmitters, pressure measuring cells, flow sensors, pressure switches, immersion probes; Data processing equipment and computers and peripheral devices therefor; Data-processing programs; The aforesaid goods being for data communications via cable and wireless telecommunications networks, for remote data transmission and for data transmission on local networks. Technical planning, research and technical development of installations, equipment and apparatus in the field of pressure measuring technology; Technical consultancy and technical expertise in the field of pressure measuring technology; Computer programming and process technology in the field of pressure measuring technology.
