Patent · US Active

Arrangement, method and sensor for measuring an absolute angular position using a multi-pole magnet

US10309801B2 · kind B2 · utility

5Cited by
12References
20Claims
0Family size

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Key dates

Filing dateAug 23, 2013
Grant dateJun 4, 2019
Priority date—
Expiry dateDec 6, 2034

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01D5/24438
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

An arrangement for measuring an angular position of a rotor with respect to a stator, comprises a multi-pole magnet mounted on the rotor, and a sensor mounted on the stator and a plurality of sensor elements organized in two groups or four groups for measuring a magnetic field component. A method for calculating the angular position comprises making a sum of signals of the elements of each group, a ratio of the two sums, and an arctan function. Alternatively the method may comprise making a sum of signals, the difference of sums, a ratio of the differences, and an arctan function. An integrated sensor, and the use of such arrangement or sensor in an automotive environment.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.