Patent · US Active

Sensor system comprising offaxis insensitive multipole magnet

US10942042B2 · kind B2 · utility

6Cited by

0References

19Claims

0Family size

Assignee

MELEXIS TECHNOLOGIES SA · CH

Inventors

Yves Bidaux · Yverdon-les-Bains, CH
Jean-Claude DEPOORTER · Paal, BE
Jan-Willem Burssens · Tielt-Winge, BE

Key dates

Filing date	Jan 16, 2019
Grant date	Mar 9, 2021
Priority date	—
Expiry date	Apr 29, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG01D2205/80
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A sensor system comprises a magnetic field generator and a sensor device arranged at a distance from said magnetic field generator and adapted for measuring or determining at least one magnetic field component and/or at least one magnetic field gradient component. The magnetic field generator comprises a multi-pole magnet having a number N of pole pairs that are axially magnetized to generate an N-pole magnetic field that is substantially rotationally symmetric around an axis. The magnet comprises a plurality of grooves and/or elongate protrusions that are arranged in a rotationally symmetric pattern around the axis to provide a substantially constant magnetic field gradient in a central region around said axis.

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