Core-position sensor

A caliper-arm-position sensor comprising a differential variable reluctance transducer (DVRT) and circuits to drive the DVRT with a substantially sinusoidal signal and to sample a signal at the DVRT once per drive-signal cycle at a predetermined position in the drive-signal cycle is disclosed.

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Bibliographische Detailangaben
Hauptverfasser:	Ho, Thientu, Beckman, Marvin, Hastings, Mark, Hendrix, Terry, Tran, Loi
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MEASURING MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PHYSICS TARIFF METERING APPARATUS TESTING
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Beschreibung
Zusammenfassung:	A caliper-arm-position sensor comprising a differential variable reluctance transducer (DVRT) and circuits to drive the DVRT with a substantially sinusoidal signal and to sample a signal at the DVRT once per drive-signal cycle at a predetermined position in the drive-signal cycle is disclosed.