DE102018209563B3 - Multifunctional sensor for the process industry - Google Patents
Multifunctional sensor for the process industry Download PDFInfo
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- DE102018209563B3 DE102018209563B3 DE102018209563.9A DE102018209563A DE102018209563B3 DE 102018209563 B3 DE102018209563 B3 DE 102018209563B3 DE 102018209563 A DE102018209563 A DE 102018209563A DE 102018209563 B3 DE102018209563 B3 DE 102018209563B3
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—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
- G01L19/0092—Pressure sensor associated with other sensors, e.g. for measuring acceleration or temperature
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting 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
- G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
- G01L9/0051—Transmitting or indicating the displacement of flexible diaphragms using variations in ohmic resistance
- G01L9/0052—Transmitting or indicating the displacement of flexible diaphragms using variations in ohmic resistance of piezoresistive elements
- G01L9/0055—Transmitting or indicating the displacement of flexible diaphragms using variations in ohmic resistance of piezoresistive elements bonded on a diaphragm
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/86—Combinations of radar systems with non-radar systems, e.g. sonar, direction finder
- G01S13/862—Combination of radar systems with sonar systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/296—Acoustic waves
- G01F23/2962—Measuring transit time of reflected waves
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
Ein multifunktionaler Sensor (1) weist folgende Merkmale auf:- ein Prozessanschlussgehäuse (2) mit einer prozessseitigen Öffnung (3),- eine Druckmesszelle (4) mit einem Messzellenkörper (5) und einer Messmembran (6) aus einem Isolationsmaterial liegt mit der Messmembran (6) an einer die Öffnung (3) umgebenden inneren Schulter (10) des Prozessanschlussgehäuses (2) an und schließt die Öffnung (3) ab,- zwischen einem inneren Anschlag (15) in dem Prozessanschlussgehäuse (2) und der Druckmesszelle (4) liegt ein piezokeramisches Ringteil (16),- eine Hornantenne (18) einer Radarmesseinheit (17) erstreckt sich durch Öffnungen (14) in dem inneren Anschlag (15), dem piezokeramischen Ringteil (16) und der Rückseite der Druckmesszelle (4) hindurch bis vor die Messmembran (6),- in Bereichen außerhalb des Abstrahlbereichs der Hornantenne (18) sind auf der prozessabgewandten Seite der Messmembran (6) Dehnungsmesswiderstände (8) aufgebracht,- eine mit den Dehnungsmesswiderständen (8), dem piezokeramischen Ringteil (16) und der Radarmesseinheit (17) verbundene Messelektronik (20) zur Druckmessung und radar- und ultraschallbasierten Füllstandsmessung.A multifunctional sensor (1) has the following features: - a process connection housing (2) with a process-side opening (3), - a pressure measuring cell (4) with a measuring cell body (5) and a measuring membrane (6) made of an insulating material lies with the measuring membrane (6) on an inner shoulder (10) of the process connection housing (2) surrounding the opening (3) and closes the opening (3), between an inner stop (15) in the process connection housing (2) and the pressure measuring cell (4 ) is a piezoceramic ring member (16), - a horn antenna (18) of a Radarmesseinheit (17) extends through openings (14) in the inner stop (15), the piezoceramic ring member (16) and the back of the pressure measuring cell (4) up to the measuring diaphragm (6), in regions outside the radiation range of the horn antenna (18) strain gauges (8) are applied on the side of the measuring diaphragm (6) remote from the process, - one with the strain gauges (8), piezoceramic ring part (16) and the Radarmesseinheit (17) connected measuring electronics (20) for pressure measurement and radar and ultrasound-based level measurement.
Description
Die Erfindung betrifft einen multifunktionalen Sensor für die Prozessindustrie.The invention relates to a multifunctional sensor for the process industry.
Aus der
Aus der
Aus der
In der Prozessindustrie stellt sich oft die Aufgabe, gleichzeitig Druck und Füllstand in einem geschlossenen Behälter, z. B. einem Tank oder einem Bioreaktor, zu messen. Bisher wurden dazu zwei unterschiedliche Prozess-Messumformer benötigt, die mit ihren Prozessanschlüssen an zwei Prozessöffnungen des Behälters beispielsweise durch Einschrauben oder über Flanschverbindungen montiert wurden. Der gerätetechnische Aufwand sowohl in Bezug auf den Behälter als auch angesichts der zwei Messumformer ist erheblich. Dies gilt insbesondere in der chemischen, pharmazeutischen und Lebensmittel-Industrie, wo eine spalt- und totraumfreie sowie dichte Anbindung des Messumformers an die Prozessumgebung gewährleistet werden muss.In the process industry, the task often arises, at the same time pressure and level in a closed container, eg. As a tank or a bioreactor to measure. Previously, two different process transmitters were needed, which were mounted with their process connections to two process openings of the container, for example by screwing in or via flange connections. The technical equipment expense both in terms of the container and in view of the two transducers is significant. This is especially true in the chemical, pharmaceutical and food industry, where a gap and dead space free and tight connection of the transmitter to the process environment must be guaranteed.
Der Erfindung liegt daher die Aufgabe zugrunde, den Aufwand für eine gleichzeitige Druck- und Füllstandsmessung zu verringern.The invention is therefore based on the object to reduce the cost of a simultaneous pressure and level measurement.
Gemäß der Erfindung wird die Aufgabe durch den in Anspruch 1 definierten multifunktionalen Sensor gelöst, von dem vorteilhafte Weiterbildungen in den Unteransprüchen angegeben sind.According to the invention, the object is achieved by the multifunctional sensor defined in claim 1, are indicated by the advantageous developments in the dependent claims.
Gegenstand der Erfindung ist somit ein multifunktionaler Sensor für die Prozessindustrie mit folgenden Merkmalen:
- - ein Prozessanschlussgehäuse mit einer prozessseitigen Öffnung,
- - in dem Prozessanschlussgehäuse ist eine Druckmesszelle angeordnet, die einen Messzellenkörper und eine von ihm gehaltene Messmembran aus einem Isolationsmaterial aufweist,
- - die Druckmesszelle liegt mit der Messmembran an einer die Öffnung umgebenden inneren Schulter des Prozessanschlussgehäuses an und schließt die Öffnung ab,
- - das Prozessanschlussgehäuse enthält einen inneren Anschlag, zwischen dem und der prozessabgewandten Rückseite der Druckmesszelle ein piezokeramisches Ringteil liegt,
- - in dem Prozessanschlussgehäuse ist eine Radarmesseinheit mit einer Hornantenne angeordnet, die sich durch Öffnungen in dem inneren Anschlag, dem piezokeramischen Ringteil und der Rückseite der Druckmesszelle erstreckt und mit ihrer Abstrahlöffnung vor der Messmembran endet,
- - auf der prozessabgewandten Seite der Messmembran sind in Bereichen außerhalb des der Abstrahlöffnung der Hornantenne gegenüberliegenden Bereichs Dehnungsmesswiderstände aufgebracht,
- - das Prozessanschlussgehäuse enthält eine Messelektronik, die mit den Dehnungsmesswiderständen dem piezokeramischen Ringteil und der Radarmesseinheit verbunden ist und im Zusammenwirken mit diesen zur Druckmessung und radar- und ultraschallbasierten Füllstandsmessung ausgebildet ist.
- a process connection housing with a process-side opening,
- in the process connection housing a pressure measuring cell is arranged, which has a measuring cell body and a measuring diaphragm held by it from an insulating material,
- the pressure measuring cell rests with the measuring diaphragm on an inner shoulder of the process connection housing surrounding the opening and closes off the opening,
- the process connection housing contains an inner stop, between which and the process-remote rear side of the pressure measuring cell is a piezoceramic ring part,
- in the process connection housing a Radarmesseinheit is arranged with a horn antenna which extends through openings in the inner stop, the piezoceramic ring member and the back of the pressure measuring cell and ends with its emission opening in front of the measuring membrane,
- on the process side facing away from the measuring diaphragm strain gauges are applied in areas outside of the radiation opening of the horn antenna opposite region,
- - The process connection housing contains a measuring electronics, which is connected to the strain gauges the piezoceramic ring member and the Radarmesseinheit and is designed in cooperation with these for pressure measurement and radar and ultrasound-based level measurement.
Der erfindungsgemäße multifunktionale Sensor vereint in vorteilhafter Weise einen Druckmesser und einen Radar- und Ultraschall-Füllstandsmesser in einem einzigen Gerät mit einem einzigen Prozessanschluss, so dass behälterseitig nur eine einzige Prozessöffnung erforderlich ist. Die Messelektronik liefert zumindest und vorzugsweise Rohmessdaten, die drahtlos oder drahtgebunden an eine weiterverarbeitende Einheit übertragen werden können. Alternativ kann der erfindungsgemäße multifunktionale Sensor Teil eines Prozess-Messumformers sein, wobei das Messumformergehäuse an dem Prozessanschlussgehäuse montiert wird und die Rohmessdaten über eine Schnittstelle an die weiterverarbeitende Elektronik in dem Messumformergehäuse übertragen werden.The multifunctional sensor according to the invention advantageously combines a pressure gauge and a radar and ultrasonic level gauge in a single device with a single process connection, so that only a single process opening is required on the container side. The measuring electronics at least and preferably provide raw measurement data that can be transmitted to a further processing unit wirelessly or by wire. Alternatively, the multifunctional sensor of the present invention may be part of a process transmitter, where the transmitter housing is mounted to the process connection housing and the raw measurement data is transferred via an interface to the processing electronics in the transmitter housing.
Neben der Druck- und Füllstandsmessung lässt sich in vorteilhafter Weise auch eine Messung der Prozesstemperatur ermöglichen, indem auf der prozessabgewandten Seite der Messmembran ein Temperatursensor aufgebracht und die Messelektronik des Sensors ferner zur Temperaturmessung ausgebildet ist.In addition to the pressure and level measurement can be advantageously allow a measurement of the process temperature by on the process side facing away from the measuring membrane applied a temperature sensor and the measuring electronics of the sensor is also designed for temperature measurement.
Zum Halten und Zentrieren der Hornantenne kann in vorteilhafter Weise in der Öffnung des inneren Anschlags ein Zentriereinsatz eingesetzt sein.For holding and centering the horn antenna can be used advantageously in the opening of the inner stop a centering insert.
Als bevorzugtes Material für die Messmembran und vorzugsweise auch für den Messzellenkörper der Druckmesszelle kommt insbesondere Keramik in Betracht; grundsätzlich können auch andere Werkstoffe wie Glas oder temperaturstabile Kunststoffe verwendet werden, die für die Mikrowellen des Radars durchlässig sind. Die Dicke der Messmembran beträgt vorzugsweise n·λ/2 der Wellenlänge A der verwendeten Mikrowellen.As a preferred material for the measuring membrane and preferably also for the measuring cell body of the pressure measuring cell is in particular ceramics into consideration; In principle, other materials such as glass or thermally stable plastics can be used, which are permeable to the microwave of the radar. The thickness of the measuring membrane is preferably n · λ / 2 of the wavelength A of the microwaves used.
Die Radar- und Ultraschall-Füllstandsmessungen können gleichzeitig, alternativ oder für verschiedene Abstandsbereiche erfolgen. Bei geeigneter Ausformung des Prozessanschlusses und indem die Messelektronik zusätzlich im Zusammenwirken mit dem Ultraschallwandler zur Durchflussmessung ausgebildet ist, kann der erfindungsgemäße multifunktionale Sensor auch zur Durchflussmessung eingesetzt werden. Bekannte Ultraschall-Durchflussmessgeräte arbeiten häufig nach dem Laufzeitdifferenz-Prinzip, wobei unterschiedliche Laufzeiten von Ultraschallwellen, insbesondere Ultraschallimpulsen, so in Abhängigkeit zur Strömungsrichtung eines fließenden Mediums ausgewertet. Hierzu werden die Ultraschallwellen in einem bestimmten Winkel zur Rohrachse sowohl mit als auch entgegen der Strömung gesendet. Aus der Laufzeitdifferenz lässt sich die Fließgeschwindigkeit und damit bei bekanntem Durchmesser des Rohrleitungsabschnitts der Volumendurchfluss bestimmen.The radar and ultrasonic level measurements can be made simultaneously, alternatively or for different ranges of distances. With suitable shaping of the process connection and in that the measuring electronics are additionally designed in cooperation with the ultrasonic transducer for flow measurement, the multifunctional sensor according to the invention can also be used for flow measurement. Known ultrasonic flowmeters often work according to the transit time difference principle, with different transit times of ultrasound waves, in particular ultrasound pulses, thus evaluated in dependence on the flow direction of a flowing medium. For this purpose, the ultrasonic waves are transmitted at a certain angle to the pipe axis both with and against the flow. The runtime difference can be used to determine the flow velocity and, with a known diameter of the pipe section, the volume flow rate.
Im Weiteren wird die Erfindung anhand von Ausführungsbeispielen und unter Bezugnahme auf die Figuren der Zeichnung erläutert; im Einzelnen zeigen
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1 ein Ausführungsbeispiel des erfindungsgemäßen multifunktionalen Sensors, -
2 ein Beispiel für die Messmembran der Druckmesszelle, -
3 ein Beispiel für einen Anschlag für ein piezokeramisches Ringteil und -
4 ein Ausführungsbeispiel des erfindungsgemäßen multifunktionalen Sensors, der auf einem Behälter montiert ist.
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1 an embodiment of the multifunctional sensor according to the invention, -
2 an example of the measuring diaphragm of the pressure measuring cell, -
3 an example of a stop for a piezoceramic ring member and -
4 An embodiment of the multifunctional sensor according to the invention, which is mounted on a container.
Gleiche Bezugszeichen haben in den verschiedenen Figuren die gleiche Bedeutung. Die Darstellungen sind rein schematisch und repräsentieren keine Größenverhältnisse.Like reference numerals have the same meaning in the various figures. The illustrations are purely schematic and do not represent size relationships.
In dem Prozessanschlussgehäuse
In dem Prozessanschlussgehäuse
Die Hornantenne
Von den Anschlussstellen
Claims (3)
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019128582A1 (en) * | 2019-10-23 | 2021-04-29 | Vega Grieshaber Kg | Radar measuring device and arrangement of a radar measuring device on a container |
WO2021099200A1 (en) * | 2019-11-20 | 2021-05-27 | Tdk Electronics Ag | Sensor for measuring pressure and temperature |
CN112903005A (en) * | 2019-12-04 | 2021-06-04 | 西门子股份公司 | Multifunctional sensor for process industry |
DE102020124404A1 (en) | 2020-09-18 | 2022-03-24 | Vega Grieshaber Kg | Integrated measuring device with filling and/or point level sensor and pressure measuring cell as well as arrangement of an integrated measuring device on a container |
DE102021119384A1 (en) | 2021-07-27 | 2023-02-02 | Ifm Electronic Gmbh | Radar level gauge with pressure measurement function |
DE102021119383A1 (en) | 2021-07-27 | 2023-02-02 | Ifm Electronic Gmbh | Capacitive limit switch |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2011186A1 (en) | 2006-04-27 | 2009-01-07 | VEGA Grieshaber KG | Patch antenna with a ceramic disc as barrier |
DE102007042043A1 (en) * | 2007-09-05 | 2009-03-12 | Endress + Hauser Gmbh + Co. Kg | Level measuring instrument for determining and monitoring level of filling material provided in container with run time measuring method of sent signals, has transducer unit and sensor unit having ultrasonic sensor |
US20100263452A1 (en) | 2005-08-23 | 2010-10-21 | Continetal Teves Ag & Co. Ohg | Pressure Sensor for Hydraulic Media in Motor Vehicle Brake Systems |
EP2983008A1 (en) | 2014-08-05 | 2016-02-10 | Valeo Schalter und Sensoren GmbH | Sensor device with combined ultrasonic sensor and radar sensor for detecting an object in an environment of a motor vehicle and motor vehicle |
-
2018
- 2018-06-14 DE DE102018209563.9A patent/DE102018209563B3/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100263452A1 (en) | 2005-08-23 | 2010-10-21 | Continetal Teves Ag & Co. Ohg | Pressure Sensor for Hydraulic Media in Motor Vehicle Brake Systems |
EP2011186A1 (en) | 2006-04-27 | 2009-01-07 | VEGA Grieshaber KG | Patch antenna with a ceramic disc as barrier |
DE102007042043A1 (en) * | 2007-09-05 | 2009-03-12 | Endress + Hauser Gmbh + Co. Kg | Level measuring instrument for determining and monitoring level of filling material provided in container with run time measuring method of sent signals, has transducer unit and sensor unit having ultrasonic sensor |
EP2983008A1 (en) | 2014-08-05 | 2016-02-10 | Valeo Schalter und Sensoren GmbH | Sensor device with combined ultrasonic sensor and radar sensor for detecting an object in an environment of a motor vehicle and motor vehicle |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019128582A1 (en) * | 2019-10-23 | 2021-04-29 | Vega Grieshaber Kg | Radar measuring device and arrangement of a radar measuring device on a container |
WO2021099200A1 (en) * | 2019-11-20 | 2021-05-27 | Tdk Electronics Ag | Sensor for measuring pressure and temperature |
CN112903005A (en) * | 2019-12-04 | 2021-06-04 | 西门子股份公司 | Multifunctional sensor for process industry |
DE102020200213A1 (en) * | 2019-12-04 | 2021-06-10 | Siemens Aktiengesellschaft | Multifunctional sensor for the process industry |
US11703407B2 (en) | 2019-12-04 | 2023-07-18 | Siemens Aktiengesellschaft | Multifunctional sensor for the process industry |
DE102020124404A1 (en) | 2020-09-18 | 2022-03-24 | Vega Grieshaber Kg | Integrated measuring device with filling and/or point level sensor and pressure measuring cell as well as arrangement of an integrated measuring device on a container |
DE102021119384A1 (en) | 2021-07-27 | 2023-02-02 | Ifm Electronic Gmbh | Radar level gauge with pressure measurement function |
DE102021119383A1 (en) | 2021-07-27 | 2023-02-02 | Ifm Electronic Gmbh | Capacitive limit switch |
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