Patent · US Active

Magnetic field sensor system and method for rotation angle measurement

US10914611B2 · kind B2 · utility

0Cited by

6References

18Claims

0Family size

Assignee

NXP B.V. · NL

Inventors

Stephan Marauska · Kaltenkirchen, DE
Edwin Schapendonk · Oss, NL
Jörg Kock · Burgwedel, DE
Dennis Helmboldt · Halstenbek, DE
Ralf van Otten · Eindhoven, NL
Jaap Ruigrok · Eindhoven, NL

Key dates

Filing date	Aug 27, 2018
Grant date	Feb 9, 2021
Priority date	—
Expiry date	Feb 8, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG01D5/16
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A system includes a magnet having an axis of rotation, the magnet being configured to produce a magnetic field. The system further includes a plurality of magnetoresistive sensor elements, each of the magnetoresistive sensor elements having a magnetic free layer configured to generate a vortex magnetization pattern in the magnetic free layer, and the magnetoresistive sensor elements being configured to produce output signals in response to the magnetic field. A rotation angle of a rotating element to which the magnet is coupled may be determined using the plurality of output signals.

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