The invention relates to a terahertz measuring device for measuring the wall thickness of an object, wherein the terahertz measuring device has a terahertz transmitter which can be rotated with a rotating ring or along a rotating ring about a measuring region which accommodates the object during measurement, and a terahertz receiver which can be rotated with the rotating ring or along the rotating ring about the measuring region and which receives terahertz irradiation emitted by the terahertz transmitter onto the object after reflection by an object arranged in the measuring region, and wherein the terahertz measuring device furthermore comprises an evaluation apparatus which is designed to determine a wall thickness of the object from the measuring data of the terahertz receiver. The invention also relates to a method for calibrating such a terahertz measuring device.
G01B 11/06 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness for measuring thickness
G01B 21/04 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
2.
DEVICE AND METHOD FOR DETERMINING THE REFRACTIVE INDEX AND/OR WALL THICKNESS OF AN OBJECT
The invention relates to a device for determining the refractive index and/or wall thickness of an object, preferably a planar object, comprising a first transmitter for terahertz radiation and a first receiver for terahertz radiation, the first transmitter being designed to transmit terahertz radiation to the object in a first main beam direction and the first receiver being designed to receive the terahertz radiation transmitted by the first transmitter after said radiation has passed through the object. The invention also relates to a corresponding method.
The invention relates to a device for checking the setting of an extrusion device producing a tubular object conveyed in a conveying direction, wherein the extrusion device is set such that extruded material exits with different exit widths at an upper side and at a lower side of an extrusion nozzle of the extrusion device. The invention also relates to a corresponding method.
A measuring device for measuring a geometric parameter of an object includes a transceiver including a transmission apparatus structured to emit terahertz radiation onto the object. The terahertz radiation is at least partially reflected by the object. A receiving apparatus is structured to receive the terahertz radiation emitted by the transmission apparatus onto the object. A reflector is structured to reflect the terahertz radiation emitted by the transmission apparatus after the terahertz radiation has passed through at least one portion of the object. A holder is structured to support the transceiver and the reflector, and to position the transceiver and the reflector opposite one another on different sides of the object or on different sides of a wall of the object.
G01N 21/3581 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared lightInvestigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using Terahertz radiation
G01B 11/06 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness for measuring thickness
G01B 11/12 - Measuring arrangements characterised by the use of optical techniques for measuring diameters internal diameters
G01N 21/3563 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solidsPreparation of samples therefor
6.
METHOD AND DEVICE FOR DETERMINING THE REFRACTIVE INDEX OF A SURFACE REGION OF AN OBJECT
A method for determining a refractive index in a surface region of an object from a production system which has not cooled to an ambient temperature includes emitting terahertz radiation from a transmitter at an angle of incidence to the surface region of the object. The terahertz radiation is reflected from the surface region of the object and received by a receiver. The refractive index of the surface region of the object from a ratio of the emitted and reflected terahertz radiation is determined using an evaluator in communication with the transmitter and the receiver. The influence of surface properties of the object on a portion of the reflected terahertz radiation is taken into account when determining the refractive index.
G01N 21/41 - RefractivityPhase-affecting properties, e.g. optical path length
G01N 21/3581 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared lightInvestigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using Terahertz radiation
7.
METHOD AND DEVICE FOR DETERMINING AT LEAST ONE GEOMETRIC PARAMETER OF AN ELONGATE OBJECT WITH A PERIODIC STRUCTURE
The invention relates to a method for determining at least one geometric parameter of an elongate object with a periodic structure, in particular a corrugated pipe comprising a corrugated layer with a periodic waveform, in which the object is irradiated by x-ray radiation that diverges transversely to the longitudinal direction of the object, and after passing through the object the x-ray radiation is detected by a spatially resolving x-ray detector as a measurement signal that is spatially resolved transversely to the longitudinal direction of the object, characterized in that the x-ray radiation is used to irradiate a measurement portion of the object that extends in the longitudinal direction of the object, in that for the x-ray radiation passing through the measurement portion, the x-ray detector detects a plurality of measurement signals that are spatially resolved transversely to the longitudinal direction of the object, in that the measurement signals are combined to form an evaluation signal that is spatially resolved transversely to the longitudinal direction of the object, in that layer transitions within the object and/or between the object and a medium surrounding the object at a plurality of locations of the measurement portion are identified in the evaluation signal, and in that at least one geometric parameter of the object is determined on the basis of the identified layer transitions. The invention also relates to a corresponding device.
G01B 15/00 - Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons
G01B 21/02 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
8.
DEVICE AND METHOD FOR DETERMINING THE WALL THICKNESS OF AN OBJECT
The invention relates to a device for determining the wall thickness of an object, more particularly a flat or elongate object, comprising a first measuring device comprising a first transmitter for terahertz radiation and a first receiver for terahertz radiation, and comprising a second measuring device comprising a second transmitter for terahertz radiation and a second receiver for terahertz radiation, wherein the first measuring device is arranged such that the first transmitter emits terahertz radiation at the object and the first receiver receives terahertz radiation that has been emitted by the first transmitter and reflected from boundary surfaces of the object, and wherein the second measuring device is arranged such that the second transmitter emits terahertz radiation at the object and the second receiver receives terahertz radiation that has been emitted by the second transmitter and reflected from boundary surfaces of the object, and comprising an evaluation unit, at which the measured values from the first and second receivers are available in order to determine the wall thickness of the object, wherein the first transmitter emits terahertz radiation in a first frequency range with a first bandwidth around a first center frequency and the second transmitter emits terahertz radiation in a second frequency range with a second bandwidth around a second center frequency different than the first center frequency, and wherein the evaluation unit is designed to determine a plurality of periodic reference profiles approximated to a signal profile of the measured values from the first receiver, to compare the determined periodic reference profiles with a signal profile of the measured values from the second receiver, and to identify the periodic reference profile that best corresponds to the signal profile of the measured values from the second receiver, and wherein the evaluation unit is further designed to determine the wall thickness of the object on the basis of the identified reference profile. The invention additionally relates to a corresponding method.
The invention relates to a method for checking the setting of an extrusion apparatus which produces a tubular strand conveyed along the longitudinal direction thereof, wherein the exit widths for extruded material at a top side and at a bottom side of an extrusion die of the extrusion apparatus are set differently, the method comprising the following steps: • by means of a terahertz measuring device, the refractive index is measured over the cross-section of at least one wall of the tubular strand at a first measuring position downstream of at least one first cooling section for the tubular strand, at which the tubular strand has not yet completely solidified, • by means of the terahertz measuring device, geometry values are further measured at the first measuring position at at least one measuring point on the top side and at at least one measuring point on the bottom side of the tubular strand, the geometry values comprising the wall thickness and/or the internal and/or external diameter of the tubular strand, • for the measured refractive index and for a ratio of the geometry values measured on the top side and on the bottom side of the tubular strand, the ratio of the exit widths set on the extrusion apparatus for extruded material on the top side and on the bottom side of the extrusion die is checked using a previously determined calibration correlation between the refractive index at the first measuring position and the ratio of the exit widths for extruded material at the top side and at the bottom side of the extrusion die. The invention also relates to an apparatus for carrying out the method according to the invention.
B29C 48/09 - Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
B29C 48/88 - Thermal treatment of the stream of extruded material, e.g. cooling
G01B 11/24 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
G01N 21/3581 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared lightInvestigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using Terahertz radiation
The invention relates to a method for capturing and providing data for a purchase of an item of clothing, in particular an online purchase of an item of clothing, comprising the following steps:
a clothed person is irradiated with terahertz radiation by means of at least one transmitter for terahertz radiation and terahertz radiation reflected by the person is received by at least one receiver for terahertz radiation,
body measurement data of the person are determined from the terahertz radiation received by the at least one receiver.
The invention also relates to a corresponding system.
G01B 11/245 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures using a plurality of fixed, simultaneously operating transducers
A method is provided for detecting a defect of a strand-like product conveyed in a conveying direction at a conveying speed of more than 50 m/min. The method includes determining a frequency of a lateral movement of the strand-like product. The lateral movement occurs in a direction that is transverse to the conveying direction. Terahertz radiation is emitted at a wavelength by at least one transmitter onto the strand-like product conveyed in the conveying direction. The terahertz radiation is reflected by the strand-like product and received by at least one receiver. A temporary change in the terahertz radiation received by the at least one receiver is detected. A defect in the strand-like product is inferred when the temporary change in the terahertz radiation received by the at least one receiver is higher than the frequency of the lateral movement of the strand-like product.
G01N 21/3581 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared lightInvestigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using Terahertz radiation
G01N 21/89 - Investigating the presence of flaws, defects or contamination in moving material, e.g. paper, textiles
G01N 21/892 - Investigating the presence of flaws, defects or contamination in moving material, e.g. paper, textiles characterised by the flaw, defect or object feature examined
G01N 21/954 - Inspecting the inner surface of hollow bodies, e.g. bores
12.
Method for determining at least one geometric parameter of a strand- or plate-shaped object
A method is disclosed for determining at least one geometric parameter of an object comprising a molten component. The method includes determining a relationship between a refractive index of the object and a shrinkage occurring during a solidification of the object. The refractive index and at least one geometric parameter of the object comprising the molten component is determined using a measuring apparatus. At least one geometric parameter of the solidified object from the refractive index and the at least one geometric parameter of the object comprising the molten component is determined using the measuring apparatus and taking into account the determined relationship between the refractive index of the object and the shrinkage occurring during the solidification of the object.
B29C 48/09 - Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
G01B 11/06 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness for measuring thickness
G01B 11/08 - Measuring arrangements characterised by the use of optical techniques for measuring diameters
G01B 11/12 - Measuring arrangements characterised by the use of optical techniques for measuring diameters internal diameters
G01B 21/08 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
G01B 21/12 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters of objects while moving
A method for determining sagging of melt of a tube extruded in an extrusion device includes structuring a measuring device to rotate about the tube. The measuring device is configured to measure a wall thickness of the tube over a circumference of the tube and determine a wall-thickness profile over the circumference of the tube from the measured wall thicknesses. The wall-thickness profile includes a frequency and an amplitude. The method further includes determining a sagging of the melt from at least one of (i) the frequency and (ii) the amplitude of the wall-thickness profile.
A method for determining dimensional data of an object includes emitting terahertz radiation by a first transmitter onto a surface of the object. The terahertz radiation emitted by the first transmitter is received by a first receiver after the terahertz radiation has passed through the object. Terahertz radiation comprising a bandwidth of less than 5% of a carrier frequency of the terahertz radiation is emitted by a second transmitter onto at least one location on the surface of the object. The terahertz radiation emitted by the second transmitter is received by a second receiver after the terahertz radiation has passed through the object. A dimension of the object is determined from one of: (i) the terahertz radiation received by the second transmitter; and (ii) a temporal or spatial change of the terahertz radiation received by the second receiver in consideration of that received by the first receiver.
A device for determining at least one of a speed and a length of a product. The device includes a laser for irradiating a surface of the product, a detector apparatus to detect laser radiation backscattered from the surface, a first sensor with a first transmission grid arranged in front of the first sensor and a second sensor. A first beam splitter splits laser radiation backscattered from the product into laser radiation conducted to at least one of the first sensor and to the second sensor. An evaluation apparatus determines at least one of: (i) the speed; and (ii) the length of the product. A third sensor is provided as is a second beam splitter that splits laser radiation coming from the first beam splitter to at least one of the sensors. The evaluation apparatus eliminates a direct component of the measurement signal received by the first sensor.
A device for determining the temperature of a tubular strand conveyed out of an extrusion device includes at least one temperature sensor configured to measure a first temperature of an outside of the tubular strand at a first position of the tubular strand. An evaluation apparatus further included and configured to compare the first temperature with a second temperature of the outside of the tubular strand at a second position of the tubular strand and determine at least one of a temperature within the tubular strand or a temperature on the inside of the tubular strand at a position of the tubular strand based on the comparison of the first and second temperature.
G01K 3/14 - Thermometers giving results other than momentary value of temperature giving differences of valuesThermometers giving results other than momentary value of temperature giving differentiated values in respect of space
G01K 13/06 - Thermometers specially adapted for specific purposes for measuring temperature of moving solid bodies in linear movement
A device for measuring a strand that is tubular includes a first radiation source to emit terahertz radiation in a first measurement region from an inside onto an inner surface of the strand. A first radiation receiver receives terahertz radiation reflected by the strand in a second measurement region. A first evaluation apparatus determines at least one geometric parameter of the strand in the first measurement region. A second radiation source emits terahertz radiation in the second measurement region from an outside onto an outer surface of the strand. A second radiation receiver receives terahertz radiation reflected by the strand in the second measurement region. A second evaluation apparatus determines at least one geometric parameter of the strand in the second measurement region. A third evaluation apparatus determines a change in the at least one geometric parameter of the strand between the first and second measurement regions.
G01N 21/3581 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared lightInvestigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using Terahertz radiation
G01B 15/02 - Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring thickness
G01B 15/04 - Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring contours or curvatures
18.
METHOD AND SYSTEM FOR CAPTURING AND PROVIDING DATA FOR A PURCHASE OF AN ITEM OF CLOTHING
The invention relates to a method for capturing and providing data for a purchase of an item of clothing, in particular an online purchase of an item of clothing, comprising the following steps: a) a clothed person is irradiated with terahertz radiation by means of at least one transmitter for terahertz radiation and terahertz radiation reflected by the person is received by at least one receiver for terahertz radiation; b) body measurement data of the person are determined from the terahertz radiation received by the at least one receiver. The invention also relates to a corresponding system.
The invention relates to a method for detecting defects of a strand-like product which is conveyed along a conveying direction, wherein terahertz radiation is emitted by at least one transmitter to the strand-like product conveyed along the conveying direction and terahertz radiation reflected by the strand-like product is received by at least one receiver, and wherein a defect of the strand-like product is deduced upon a temporary change of the terahertz radiation signal received by the at least one receiver. The invention also relates to a corresponding device.
G01N 21/3581 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared lightInvestigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using Terahertz radiation
G01N 21/89 - Investigating the presence of flaws, defects or contamination in moving material, e.g. paper, textiles
20.
METHOD FOR DETERMINING SAGGING OF MELT OF A TUBE EXTRUDED IN AN EXTRUSION DEVICE
The invention relates to a method for determining sagging of melt of a tube extruded in an extrusion device, wherein the wall thickness of the tube is measured over the circumference of the tube and a wall-thickness profile over the circumference of the tube is produced from the measured wall thicknesses, and wherein sagging of the melt is determined from the frequency and/or the amplitude of the wall-thickness profile produced.
B29C 48/09 - Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
B29C 48/88 - Thermal treatment of the stream of extruded material, e.g. cooling
G01B 11/24 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
G01N 21/3581 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared lightInvestigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using Terahertz radiation
21.
METHOD AND DEVICE FOR DETERMINING THE REFRACTIVE INDEX IN THE SURFACE REGION OF AN OBJECT
The invention relates to a method for determining the refractive index in the surface region of a strand- or plate-shaped object which comes out of a production system in a heated state and has not yet completely cooled to the ambient temperature, having the following steps: a) terahertz radiation is emitted onto the surface of the object at an angle of incidence, b) terahertz radiation reflected by the surface of the object is received, c) the refractive index in the surface region of the object is determined from the ratio of emitted terahertz radiation to reflected terahertz radiation, and d) the influence of surface properties of the object on the proportion of reflected terahertz radiation is taken into consideration while determining the refractive index. The invention also relates to a corresponding device.
G01N 21/27 - ColourSpectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection
G01N 21/3581 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared lightInvestigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using Terahertz radiation
G01N 21/41 - RefractivityPhase-affecting properties, e.g. optical path length
22.
METHOD FOR DETERMINING AT LEAST ONE GEOMETRIC PARAMETER OF A STRAND- OR PLATE-SHAPED OBJECT
The invention relates to a method for determining at least one geometric pattern of a strand- or plate-shaped object which has not yet completely solidified and which still has flowable components, having the following steps: - in an ascertaining step, the relationship between the refractive index of the strand- or plate-shaped object and a shrinkage occurring during the course of the complete solidification is ascertained for the strand- or plate-shaped object, - in a determining step, the refractive index and at least one geometric parameter of the strand- or plate-shaped object which is not completely solidified and still has flowable components are determined, and - the at least one geometric parameter in the completely solidified state of the strand- or plate-shaped object is calculated from the refractive index values determined in the determining step and the at least one geometric parameter while taking into consideration the relationship ascertained in the ascertaining step.
G01B 21/08 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
G01B 21/12 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters of objects while moving
A device for detecting an object conveyed through a measuring region comprises a transmission apparatus configured to emit measuring radiation onto the outer contour of the object. The measuring radiation comprises a frequency in a range of one of gigahertz and terahertz. A protective mesh is positioned between the measuring region and at least one of the transmission apparatus and the receiving apparatus. The protective mesh is transparent for the measuring radiation and permeable to a gas.
A device for controlling a production system for planar or strand-shaped bodies comprises a measurement region and a conveying apparatus configured to convey the body through the measurement region. A transmission apparatus is configured to irradiate the body with measurement radiation in the measurement region. A detection apparatus is configured to detect the measurement radiation reflected by the body. An evaluation apparatus is configured to use the measurement radiation detected by the detection apparatus to determine at least one of: (1) a refractive index of the body; and (2) an absorption of the measurement radiation by the body. A control apparatus is configured to control at least one production parameter of a production system based on the at least one of: (1) the refractive index of the body; and (2) the absorption of the measurement radiation by the body.
G01N 21/3581 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared lightInvestigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using Terahertz radiation
G01N 21/41 - RefractivityPhase-affecting properties, e.g. optical path length
G01N 21/896 - Optical defects in or on transparent materials, e.g. distortion, surface flaws
25.
DEVICE FOR DETERMINING THE SPEED AND/OR THE LENGTH OF A PRODUCT
The invention relates to a device for determining the speed and/or the length of a product, in particular a strand, which is moving along a conveyor device, comprising a laser for irradiating a surface of the product and comprising a detector device for detecting laser radiation scattered back from the surface of the product, wherein the detector device comprises a first sensor, in particular a photodiode, with a first transmission grating arranged in front of the sensor and a second sensor which is made of an image sensor, and additionally a first beam splitter is provided which splits laser radiation scattered back from the product into laser radiation which is conducted to the first sensor and to the image sensor. An analysis device is designed to determine the speed and/or the length of the product using an intensity modulation detected by the first sensor during a movement of the product and/or using a speckle pattern shift detected by the image sensor during a movement of the product, said speckle pattern being formed on the image sensor.
G01P 3/36 - Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
G01P 13/04 - Indicating positive or negative direction of a linear movement or clockwise or anti-clockwise direction of a rotational movement
G01P 3/80 - Devices characterised by the determination of the time taken to traverse a fixed distance using auto-correlation or cross-correlation detection means
26.
METHOD AND DEVICE FOR DETERMINING THE TEMPERATURE OF A TUBULAR STRAND
The invention relates to a device for determining the temperature of a tubular strand (12) delivered from an extrusion device (10), wherein a first temperature sensor (30) is provided for measuring a first temperature of the outside of the tubular strand (12) at a first position of the tubular strand (12), and an evaluation device (28) is provided which is designed to compare the first temperature with a second temperature of the outside of the tubular strand (12) at a second position of the tubular strand (12), spaced apart from the first position in the delivery direction (14) of the tubular strand (12), and to determine the temperature within the tubular strand (12) and/or on the inside of the tubular strand (12) at a position of the tubular strand (12), from the comparison of the first and second temperatures. The invention also relates to a corresponding method.
B29C 48/12 - Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
B29C 48/11 - Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped
27.
Device and method for determining a measurement of a strand-shaped object
A device for performing a measurement of a strand-shaped object comprises at least one transmission apparatus configured to emit measuring radiation onto the strand-shaped object, which reflects the measuring radiation. At least one receiving apparatus is configured to receive the measuring radiation reflected by the strand-shaped object. An evaluation apparatus is configured to determine at least one of (1) the diameter and (2) the outer contour of the strand-shaped object based on the measuring radiation received by the at least one receiving apparatus. At least one retroreflector is configured to surround at least a portion of the strand-shaped object and retroreflect at least some of the measuring radiation reflected by the strand-shaped object.
G01B 11/08 - Measuring arrangements characterised by the use of optical techniques for measuring diameters
G01B 11/24 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
G01B 11/25 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. moiré fringes, on the object
G01B 11/245 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures using a plurality of fixed, simultaneously operating transducers
G01B 11/30 - Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
G01N 21/88 - Investigating the presence of flaws, defects or contamination
A method for measuring a tubular strand exiting from an extrusion device comprises directing electromagnetic radiation from an inside of the tubular strand to an inner side of a tubular strand. The electromagnet radiation is radiated from at least one radiation source within a frequency range from 1 GHz to 6000 GHz. The electromagnetic radiation is reflected off of the tubular strand and received by at least one radiation receiver. A value for at least one of a diameter, a wall thickness, and a deviation in shape of the tubular strand is determined from the electromagnetic radiation received by at least one radiation receiver.
B29C 48/90 - Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
G01B 15/02 - Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring thickness
G01B 15/04 - Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring contours or curvatures
The invention relates to a method for measuring a tubular strand emerging from an extruder and conveyed in a longitudinal direction, said method comprising the steps of: • in a first measurement region, guiding terahertz radiation from at least one first radiation source from the inside onto the inner surface of the tubular strand, the terahertz radiation reflected by the tubular strand being received by at least one first radiation receiver, and at least one geometric parameter of the tubular strand being determined from the received terahertz radiation in the first measurement region, • in a second measurement region located downstream of the first measurement region in the conveying direction, guiding terahertz radiation from at least one second radiation source from the outside onto the outer surface of the tubular strand, the terahertz radiation reflected by the tubular strand being received by at least one second radiation receiver, and at least one geometric parameter of the tubular strand being determined from the received terahertz radiation in the second measurement region, • determining a change in at least one geometric parameter of the tubular strand between the first measurement region and the second measurement region, and • determining at least one adjustment instruction for the extruder based on a determined change in the at least one geometric parameter. The invention also relates to a corresponding device.
B29C 48/90 - Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
G01B 11/06 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness for measuring thickness
G01N 21/954 - Inspecting the inner surface of hollow bodies, e.g. bores
B29C 48/49 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using two or more extruders to feed one die or nozzle
A device and method for reliably and accurately detecting impurities in a bulk material comprising two opposing tunnel sections arranged such that a bulk material stream flows between or through the tunnel sections. At least one of the tunnel sections has a lighting means configured for indirectly illuminating the bulk material stream. Furthermore, an optical detector receives the light emitted from the illuminated bulk material. The lighting means and optical detector are configured about the tunnel sections such that the optical radiation optical radiation does not pass directly from the lighting means to the bulk material, nor from the bulk material stream to the optical detector An evaluation apparatus, responsive to measured data from the optical detector, identifies impurities in the bulk material. The invention moreover relates to a method for operating such a device.
The invention relates to a method for controlling a production system for planar or strand-shaped bodies, in which method the body is conveyed in a conveying direction through a measurement region, the body is irradiated with measurement radiation in the gigahertz or terahertz frequency range in the measurement region, the measurement radiation at least partially penetrating the body, and measurement radiation reflected by the body is detected and the refractive index of the body and/or the absorption of the measurement radiation by the body is determined using the detected measurement radiation, wherein: at least one production parameter of the production system is controlled on the basis of the refractive index determination and/or the absorption determination; the refractive index and/or the absorption is determined at a plurality of time points during the conveying of the body through the measurement and the at least one production parameter is controlled on the basis of a change in the refractive index and/or in the absorption over time; and/or measurement radiation is radiated onto different points of the body; the refractive index and/or the absorption is determined at the different points of the body and the at least one production parameter is controlled on the basis of a spatial change in the refractive index and/or in the absorption. The invention further relates to a corresponding device.
G01B 11/06 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness for measuring thickness
G01B 11/24 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
G01N 21/35 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
G01N 21/89 - Investigating the presence of flaws, defects or contamination in moving material, e.g. paper, textiles
The invention relates to an apparatus for detecting an object conveyed by means of a conveying device through a measuring area of the apparatus, comprising a transmitting device for transmitting measuring radiation with a frequency in the gigahertz or terahertz range onto the outer contour of the object and a receiving device for receiving the measuring radiation reflected by the object, wherein a protective grille that is transparent for the measuring radiation and permeable for gas is arranged between the transmitting device/receiving device and the measuring area. The invention also relates to a corresponding method.
G01B 11/06 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness for measuring thickness
G01B 11/10 - Measuring arrangements characterised by the use of optical techniques for measuring diameters of objects while moving
G01B 11/24 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
G01B 15/02 - Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring thickness
G01N 21/3581 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared lightInvestigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using Terahertz radiation
G01S 17/89 - Lidar systems, specially adapted for specific applications for mapping or imaging
33.
APPARATUS FOR DETERMINING THE DIAMETER AND/OR THE OUTER CONTOUR OF A STRAND-SHAPED OBJECT
The invention relates to an apparatus for determining the diameter and/or the outer contour of a strand-shaped object, comprising at least one transmitting device for emitting measuring radiation onto the strand-shaped object, wherein the measuring radiation is reflected by the strand-shaped object, also comprising at least one receiving device for receiving the measuring radiation emitted by the at least one transmitting device and reflected by the strand-shaped object, and comprising an evaluation device which is set up to determine the diameter and/or the outer contour of the strand-shaped object on the basis of the measuring radiation received by the at least one receiving device, wherein at least one retroreflector surrounding at least sections of the strand-shaped object is provided and completely or partially retroreflects the measuring radiation reflected by the strand-shaped object.
The invention relates to a method for measuring a tubular strand (116, 16, 216) emerging from an extruder (10, 110, 12, 210), in which electromagnetic radiation in the frequency range from 1 GHz to 6000 GHz from at least one radiation source (32) is directed from the interior onto the inside of the tubular strand (116, 16, 216). Electromagnetic radiation reflected by the tubular strand (16, 216) is received by at least one radiation receiver (32), and the diameter and/or the wall thickness and/or deviations of shape of the tubular strand (116, 16, 216) is/are determined from the received electromagnetic radiation. The invention further relates to a corresponding device.
B29C 48/90 - Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
G01B 11/06 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness for measuring thickness
G01N 21/954 - Inspecting the inner surface of hollow bodies, e.g. bores
B29C 48/49 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using two or more extruders to feed one die or nozzle
35.
Device and method for measuring the diameter and/or the wall thickness of a strand
A device for measuring the diameter and/or the wall thickness of a strand that has a substantially circular cross-section and is guided through the device by guide means in the direction of its longitudinal axis includes at least one transmitter for transmitting terahertz radiation, at least one radiation optical system that conducts the terahertz radiation to a strand guided by the device, at least one reflector for the terahertz radiation arranged opposite a transmitter and behind the strand in the radiation direction of the terahertz radiation, at least one receiver for receiving the terahertz radiation reflected at the strand and/or the reflector, and an evaluation apparatus that determines the diameter and/or the wall thickness of the strand using the measuring signals received by the at least one receiver. A corresponding method is also described.
G01N 21/3581 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared lightInvestigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using Terahertz radiation
G01B 11/06 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness for measuring thickness
G01J 5/10 - Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
36.
Method for determining the temperature of a strand
A method for determining the temperature of a strand comprises disposing the strand along a background radiator of known temperature. Receiving the strand using a spatially resolving thermal imaging sensor in front of the background radiator while the strand is being disposed along its longitudinal axis. Forming an integral across a measuring value area, the integral configured to detect a complete strand portion located in front of the background radiator of the thermal imaging sensor. deducing the temperature of the strand by comparing the formed integral with a reference value.
The invention relates to an apparatus for examining bulk material, in particular pellets, for contamination, comprising a bulk-material inlet, through which bulk material is fed to the apparatus in a substantially planar bulk-material stream, wherein the apparatus comprises two tunnel portions, which are located opposite one another in the form of tubes and are arranged such that the bulk-material stream falls through between the tunnel portions, wherein at least one of the tunnel portions has lamps for indirectly illuminating the bulk-material stream, wherein the indirect illumination is such that no optical radiation passes directly from the lamps to the bulk material, and that no optical radiation passes directly from the lamps to the optical detector, wherein there is at least one optical detector provided, which is directed onto the bulk-material stream through at least one of the tunnel portions, and wherein there is an evaluation device provided, which uses the measurement data from the at least one optical detector to establish contamination of the bulk material examined. The invention also relates to a method for operating such an apparatus.
The invention relates to a device for measuring the diameter and/or the wall thickness of a strand, which is substantially circular in cross-section and which is guided through the device in the direction of the longitudinal axis of the strand by means of guiding means, comprising at least one transmitter for emitting terahertz radiation, wherein at least one radiation optical unit is provided, which conducts terahertz radiation emitted by the transmitter to a strand guided through the device, wherein a reflector for the terahertz radiation is arranged opposite at least one transmitter and is arranged behind the strand in the radiation direction of the terahertz radiation emitted by the at least one transmitter, and also comprising at least one receiver for receiving the tetahertz radiation emitted by the at least one transmitter and reflected on the strand and/or on the reflector, and comprising an evaluating apparatus, which is designed to determine the diameter and/or the wall thickness of the strand on the basis of the measurement signals received by the at least one receiver. The invention further relates to a corresponding method.
G01B 11/06 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness for measuring thickness
G01N 21/3581 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared lightInvestigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using Terahertz radiation
The invention relates to a device and corresponding method for sorting bulk material, in particular pellets, comprising a vibration conveyor apparatus and a feed apparatus, which feeds bulk material to the vibration conveyor apparatus and is examined for defects using a detector apparatus. Bulk material identified as being non-defective is deposited in a first outlet and bulk material identified as being defective is shorted out and deposited in.
A method for contactlessly determining the temperature of a moving object having an unknown degree of emission, especially a metal wire conveyed along its longitudinal axis, is described. The object is guided through at least one radiation source emitting thermal radiation, wherein the object is mostly or completely surrounded by the at least one radiation source. With at least one radiation detector, a spatially-resolved thermal radiation measurement is performed in a region through which the object passes when it is guided through the radiation source. The temperature of the moving object is determined on the basis of the spatially-resolved thermal radiation measurement. A corresponding device is also described.
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Measuring devices, electric measuring devices, measuring apparatus, measuring instruments, material testing instruments and machines; Apparatus and instruments for regulating and controlling electric current; Measuring, regulating and testing apparatus, in particular for the wire and cable industry, and the pipe, fibreglass and hose industry; Apparatus for verifying the purity of materials and/or foodstuffs. Installation, Maintenance and repair of measuring, regulating and testing apparatus. Calibration of measuring, regulating and testing apparatus.
42.
Method for evaluating Fresnel diffraction border profiles
A method for determining the position of at least one edge of an object, in particular a strand, comprises illuminating the object using light from at least one coherent light source, wherein diffraction borders are generated on both geometric boundaries of the shadow caused by the object. The method also includes recording the spatial intensity profile of at least one diffraction border using at least one single or multi line optical sensor, differentiating the at least one recorded intensity profile with respect to location and plotting it using a squared location axis, and comparing the at least one recorded intensity profile, differentiated with respect to location and plotted using a squared location axis, to at least one periodic reference intensity profile. The position of at least one edge of the object is determined on the basis of the completed comparison.
G01B 11/14 - Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
G01B 11/02 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness
G01B 11/10 - Measuring arrangements characterised by the use of optical techniques for measuring diameters of objects while moving
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Measuring devices, electric measuring devices, measuring
apparatus, measuring instruments, material testing
instruments and machines; apparatus and instruments for
regulating and controlling electric current; measuring,
regulating and testing apparatus, in particular for the wire
and cable industry, and the pipe, fibreglass and hose
industry; apparatus for verifying the purity of materials
and/or foodstuffs. Installation, maintenance and repair of measuring,
regulating and testing apparatus. Calibration of measuring, regulating and testing apparatus.
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Measuring devices, electric measuring devices, measuring
apparatus, measuring instruments, material testing
instruments and machines; apparatus and instruments for
regulating and controlling electric current; measuring,
regulating and testing apparatus, in particular for the wire
and cable industry, and the pipe, fibreglass and hose
industry; apparatus for verifying the purity of materials
and/or foodstuffs. Installation, maintenance and repair of measuring,
regulating and testing apparatus. Calibration of measuring, regulating and testing apparatus.
The invention relates to an apparatus for sorting bulk material, in particular pellets, comprising a vibration conveyor and a feed device, which feeds bulk material to the vibration conveyor, further comprising a first exit and a second exit, wherein the first exit is arranged such that the bulk material conveyed over one end of the vibration conveyor drops into the first exit, further comprising at least one detector device, by means of which the bulk material conveyed by the vibration conveyor is examined for defects, wherein the detector device comprises at least one X-ray detector device having at least one X-ray source and at least one X-ray sensor, and wherein the detector device comprises at least one optical detector device operating in the visible wavelength range, and/or at least one detector device operating in the infrared wavelength range, and having at least one optical radiation source and at least one optical sensor, wherein the apparatus also comprises a separating-out device, by means of which bulk material conveyed over the end of the vibration conveyor and detected as being defective by the detector device has its trajectory influenced such that the bulk material detected as being defective drops into the second exit, wherein the end of the vibration conveyor is adjoined by a rotationally driven roller, onto which the bulk material conveyed over the end of the vibration conveyor passes and which conveys the bulk material, over a trajectory predetermined by the rotation of the roller, in the direction of the first exit. The invention also relates to a corresponding method. x
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Measuring devices, namely gauges for measuring dimensional characteristics of cables, gauges for measuring dimensional characteristics of tubes, gauges for wall thickness measurement, gauges for temperature measurement, gauges for eccentricity measurement, gauges for capacities measurement, diameter measuring gauges; material testing instruments and machines, namely gauges for surface inspection, lamp detectors for tubes and cables, gauges for high voltage tests; apparatus and instruments for regulating and controlling electric current; apparatus for verifying the purity of materials and/or foodstuffs, namely purity scanner for measuring with X-ray technology and optical systems Installation, maintenance and repair of measuring, regulating and testing apparatus Calibration of measuring, regulating and testing apparatus
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Measuring devices, namely gauges for measuring dimensional characteristics of cables, gauges for measuring dimensional characteristics of tubes, gauges for wall thickness measurement, gauges for temperature measurement, gauges for eccentricity measurement, gauges for capacities measurement, diameter measuring gauges; material testing instruments and machines, namely gauges for surface inspection, lamp detectors for tubes and cables, gauges for high voltage tests; apparatus and instruments for regulating and controlling electric current; apparatus for verifying the purity of materials and/or foodstuffs, namely purity scanner for measuring with X-ray technology and optical systems Installation, maintenance and repair of measuring, regulating and testing apparatus Calibration of measuring, regulating and testing apparatus
48.
Method and device for measuring the centricity of a conductor in an insulating casing
A method for measuring the centricity of a conductor in an insulating casing, in which the string formed by the conductor with its insulating casing is moved along a conveying direction. A device for measuring the centricity of a conductor in an insulating casing includes an inductive measuring apparatus, first and second optical measuring apparatus and an evaluation apparatus.
G01N 21/00 - Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
G01B 11/24 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
G01B 7/28 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring contours or curvatures
G01B 7/312 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapersMeasuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes
G01B 11/00 - Measuring arrangements characterised by the use of optical techniques
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
Goods & Services
Measuring devices, electric measuring devices, measuring apparatus, measuring instruments, material testing instruments and machines; Apparatus and instruments for regulating and controlling electric current; Measuring, regulating and testing apparatus, in particular for the wire and cable industry, and the pipe, fibreglass and hose industry; Apparatus for verifying the purity of materials and/or foodstuffs. Installation, Maintenance and repair of measuring, regulating and testing apparatus; Calibration of measuring, regulating and testing apparatus.
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
Goods & Services
Measuring devices, electric measuring devices, measuring apparatus, measuring instruments, material testing instruments and machines; Apparatus and instruments for regulating and controlling electric current; Measuring, regulating and testing apparatus, in particular for the wire and cable industry, and the pipe, fibreglass and hose industry; Apparatus for verifying the purity of materials and/or foodstuffs. Installation, Maintenance and repair of measuring, regulating and testing apparatus; Calibration of measuring, regulating and testing apparatus.
51.
METHOD AND DEVICE FOR CONTACTLESSLY DETERMINING THE TEMPERATURE OF A MOVING OBJECT HAVING AN UNKNOWN DEGREE OF EMISSION
The invention relates to a method for contactlessly determining the temperature of a moving object having an unknown degree of emission, in particular a metal wire that is conveyed along its longitudinal axis, comprising the following steps: the object is guided through at least one radiation source emitting heat, the object being predominantly or completely surrounded by the at least one radiation source; at least one radiation detector is provided to carry out a spatially resolved heat radiation measurement in an area that has been passed by the object during its guidance through the radiation source; the temperature of the moving object is determined on the basis of the spatially resolved heat radiation measurement. The invention further relates to a corresponding device.
The invention relates to a method for determining the position of at least one edge of an object, in particular of a strand, comprising steps of: illuminating the object using light from at least one coherent light source, diffraction borders being generated on both geometric boundaries of the shadow formed by the object. In one embodiment, the intensity profiles are first differentiated according to the location. Each differentiated intensity profile can either be plotted on a quadratic position axis and compared to a periodic reference intensity profile, or be directly compared to a reference intensity profile that results from a periodic function. In a second embodiment, the intensity profiles are compared to a reference intensity profile that results from a periodic function, if this function has a period length with a substantially inversely linear dependency on the location, and if the function is integrated over the location.
The disclosure relates to a method for measuring the temperature of a strand-like material to be heated to a target temperature, including the steps: the strand-like material is guided in heat conducting contact about at least one disk, mounted so as to rotate, that is heated to a predefined temperature, and a difference is measured between the temperature of the strand-like material or a value characterizing the temperature of the strand-like material, before conveyance about the disk and after conveyance about the disk. The disclosure also relates to a corresponding device.
G01K 3/00 - Thermometers giving results other than momentary value of temperature
G01K 1/14 - SupportsFastening devicesArrangements for mounting thermometers in particular locations
G01K 13/00 - Thermometers specially adapted for specific purposes
G01K 7/00 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat
G01J 5/00 - Radiation pyrometry, e.g. infrared or optical thermometry
G05D 23/19 - Control of temperature characterised by the use of electric means
B29C 47/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor (extrusion blow-moulding B29C 49/04)
B29C 47/02 - incorporating preformed parts or layers, e.g. extrusion moulding around inserts or for coating articles
B29C 47/88 - Heating or cooling the stream of extruded material
A method for the measurement of the temperature of a plastified plastic material at the exit of an extruder, characterized in that the function of the sound velocity in dependence of the temperature is measured and memorized for at least one plastified plastic material, the sound velocity is measured during the extrusion of the plastic material, and the respective temperature is determined from the velocity measurement values and the function.
Method for the simulation of defects in the case of spark testers, in which breakdowns are recognized and displayed by a detector and added by means of a defect counter, wherein the high voltage is applied to a stationary standard spark gap and pulsed test voltages of predetermined level, duration and frequency are generated by the high voltage generator of the spark tester in short regular intervals.
An apparatus for the measurement of the temperature of a plastified plastic material at the exit of an extruder, characterised in that the function of the sound, velocity in dependence of the temperature is measured and memorised for at least one plastified plastic material, the sound velocity is measured during the extrusion of the plastic material, and the respective temperature is determined from the velocity measurement values and the function.
A window arrangement on a pressure pipe, with a casing in the train or at the end of the pressure pipe, said casing featuring flanges on diametrically opposing sides having radially directed passages, whose axes are standing perpendicular to the longitudinal axis of the pressure pipe and are located in a measurement plane for an x-ray measurement device, an x-ray source being associated to the one passage on the outer side and a receiver sensitive to X-rays to the other passage, and with window plates that are transmissive for X-rays which are sealingly arranged in the associated passage and are fixed in the passage with the aid of a fastening member and which consist of a material which is resistant against high temperatures and process-due etchings by chemically aggressive substances.
G21K 1/00 - Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
G01N 23/06 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and measuring the absorption
G01N 23/20 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by using diffraction of the radiation by the materials, e.g. for investigating crystal structureInvestigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by using scattering of the radiation by the materials, e.g. for investigating non-crystalline materialsInvestigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by using reflection of the radiation by the materials
58.
Method for visualising the eccentricity of cables in the eccentricity measurement of the cables
A method for visualizing the eccentricity of cables which is acquired in the eccentricity measurement of the cables, wherein eccentricity measurements take place at the same time on plural locations spaced apart across the perimeter of the cable during the transportation of the cable, and the measurement values are represented graphically on a display after being processed in a computer, characterized in that a frequency distribution of individual eccentricity values acquired during the measurement interval is represented on the display, wherein the scattering caused by measuring instruments is significantly smaller than the scattering of the individual eccentricity values.
Method for the operation of a production plant to produce an extrudate, by extruding, in at least one extruder whose screw rotation rate is variable, at least one layer of the extrudate composed of plastic, where the velocity of the extrudate (linear velocity) is variable, and moreover by measuring the diameter and/or the wall thickness of the layer by using a measuring head at a distance from the extruder, characterized by the following steps: - in an extruder model in a computer, an algorithm is stored to calculate diameter values and/or wall thickness values of the layer, taking into account the rotation-rate-dependent output performance of the extruder, the internal diameter of the layer and the linear velocity, - the extruder model is generated from the volume output (extruder performance) via measurement of the wall thickness and/or of the diameter, the extruder rotation rate, the linear velocity and the internal diameter and/or the core diameter, - during production of the extrudate, the extruder model calculates, for an internal diameter, a linear velocity, a screw rotation rate of the extruder and rotation-rate-dependent data for the output performance of the extruder, the value predictable as generated by the extruder for diameter and/or wall thickness, - the calculated, predictable value for diameter and/or wall thickness is indicated and - the calculated and indicated value for diameter and/or wall thickness is brought to the specified value for diameter and/or wall thickness via change in the screw rotation rate of the extruder and/or the linear velocity.
09 - Scientific and electric apparatus and instruments
Goods & Services
Measuring and testing apparatus, namely, gauges for measuring dimensional characteristics of cables, gauges for measuring dimensional characteristics of tubes, gauges for wall thickness measurement, gauges for temperature measurement, gauges for eccentricity measurement, gauges for capacitance measurement, gauges for surface inspection, diameter measuring gauges, lump-detectors for tubes and cables, gauges for high voltage tests
09 - Scientific and electric apparatus and instruments
Goods & Services
Measuring and testing apparatus, namely, gauges for measuring dimensional characteristics of cables, gauges for measuring dimensional characteristics of tubes, gauges for wall thickness measurement, gauges for temperature measurement, gauges for eccentricity measurement, gauges for capacitance measurement, gauges for length measurement, gauges for surface inspection, diameter measuring gauges, lump-detectors for tubes and cables, gauges for high voltage tests
