Patent · US Active

Method and arrangement for magnetically determining a position

US9223044B2 · kind B2 · utility

0Cited by

4References

12Claims

0Family size

Assignee

Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

Michael Hackner · Erbach, DE
Volker Peters · Celle, DE
Josef Sauerer · Herzogenaurach, DE

Key dates

Filing date	May 21, 2010
Grant date	Dec 29, 2015
Priority date	—
Expiry date	Jan 31, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG01V3/081
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method and an arrangement for magnetically determining a position using a permanent magnet are described, wherein the vector and local gradient of the magnetic flux density of the permanent magnet are measured using a position sensor, and the position and orientation of the magnetic dipole of the permanent magnet relative to the position sensor are calculated from the measured values. A spherical permanent magnet having homogenous magnetization is used in the method and the arrangement, preventing previously present cross-sensitivity between the position and orientation determination, and allowing measurement without prior calibration.

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