Patent · US Active

Indicator element for a magnetic rotation angle sensor

US7830138B2 · kind B2 · utility

4Cited by

5References

17Claims

0Family size

Assignee

Tyco Electronics AMP GmbH · DE

Inventors

Marco Wolf · Wesel, DE
Bernd Hoffelder · Münstermaifeld, DE

Key dates

Filing date	Mar 14, 2008
Grant date	Nov 9, 2010
Priority date	—
Expiry date	May 7, 2029

Classification

Technology area (CPC G)Physics
CPC primaryG01D5/145
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An indicator element for a magnetic rotation angle sensor having a field probe for generating a sensor signal in response to a geometric position of the indicator element relative to the field probe is disclosed. The indicator element has a permanent magnet with an annular cross-section having a plurality of segments, magnetization of the segments being in different directions so that a homogeneous magnetic field is formed in an inner region of the indicator element into which the field probe is arranged. At least two segments exhibit radial or diametrical magnetization and at least two segments exhibit lateral magnetization.

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