SENSOR ARRANGEMENT AND METHOD FOR OPERATION OF A SENSOR

A sensor arrangement (10) comprises a sensor (13), a driver circuit (11) and a measurement circuit (12). The sensor (13) comprises two capacitive elements (14, 15), two input terminals (16, 17) and an output terminal (18). The two capacitive elements (14, 15) are coupled between the two input termin...

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Bibliographische Detailangaben
Hauptverfasser:	SINGAMALA, Sudhakar, YADAGIRI, Vasanth Swaroop, AVALUR, Krishna Kanth, GAJDARDZIEW, Andrzej
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT MEASURING MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS TARIFF METERING APPARATUS TESTING
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Beschreibung
Zusammenfassung:	A sensor arrangement (10) comprises a sensor (13), a driver circuit (11) and a measurement circuit (12). The sensor (13) comprises two capacitive elements (14, 15), two input terminals (16, 17) and an output terminal (18). The two capacitive elements (14, 15) are coupled between the two input terminals (16) and the output terminal (18). The driver circuit (11) is coupled to the two input terminals (16, 17) of the sensor (13). The measurement circuit (12) is coupled to the output terminal (18) of the sensor (13). In a measurement mode, the driver circuit (11) provides two periodic signals (S1, S2) to the two input terminals (16, 17). In a diagnostic mode, the driver circuit (11) provides a third periodic signal (S3) to the first input terminal (16) and does not provide a periodic signal to the second input terminal (17).