Patent · US Active

Multicomponent magnetic field sensor

US9714989B2 · kind B2 · utility

0Cited by

6References

11Claims

0Family size

Assignee

Sensitec GmbH · DE

Inventors

Sebastian Weber · Eßlingen, DE
Claudia Glenske
Uwe Loreit · Wetzlar, DE

Key dates

Filing date	Jul 18, 2014
Grant date	Jul 25, 2017
Priority date	—
Expiry date	Aug 13, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG01C17/02
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A magnetic field sensor apparatus for determining two or three components of a magnetic field includes at least one Wheatstone bridge with two half-bridges, wherein each half-bridge includes at least two bridge resistors, and at least one of the two bridge resistors is a magnetic-field-sensitive resistor with respect to a magnetic field component in an X/Y magnetic field sensor plane. Arranged symmetrically between the two magnetic-field-sensitive bridge resistors is a ferromagnetic flux concentration element which generates magnetic field components which are anti-symmetric with respect to a Z magnetic field component oriented perpendicular to the X/Y magnetic field sensor plane and are in the X/Y magnetic field sensor plane. A coordinate aspect proposes a method for determining a two-dimensional or three-dimensional orientation of an external magnetic field by such a magnetic field sensor apparatus.

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