AUTO-CALIBRATION FOR MULTI-POLE ANGLE SENSORS WITH MECHANICAL MODULATION

A sensor, comprising: a processing circuitry configured to: receive a first signal that is generated by a first magnetic field sensing element, the first signal being generated in response to a magnetic field that is indicative of rotation of a target; identify N local maxima of the first signal, wh...

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Bibliographische Detailangaben
Hauptverfasser:	Deligiannis, Sergio Nicolás, Rigoni, Nicolás
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS 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, comprising: a processing circuitry configured to: receive a first signal that is generated by a first magnetic field sensing element, the first signal being generated in response to a magnetic field that is indicative of rotation of a target; identify N local maxima of the first signal, where N is a positive integer, and N>1; identify N local minima of the first signal; generate a first offset adjustment signal and a first gain adjustment signal based on: (i) a first sum of the local maxima of the first signal and (ii) a second sum of the local minima of the first signal; and adjust the first signal based on the first offset adjustment signal and the first gain adjustment signal.