Patent · US Active

Method and system for adjusting the sensitivity of a magnetoresistive sensor

US8129988B2 · kind B2 · utility

15Cited by

11References

3Claims

0Family size

Assignee

COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR

Inventors

Claude Fermon · Damiette, FR
Myriam Pannetier-Lecoeur · Damiette, FR

Key dates

Filing date	Jun 22, 2007
Grant date	Mar 6, 2012
Priority date	—
Expiry date	May 7, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG01R15/205
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The system for measuring high currents or magnetic fields using a magnetoresistive sensor (80) includes a device for applying a known predetermined magnetic bias field Hbias in a direction such that it has a non-zero component of the field perpendicular to a detection direction of the magnetoresistive sensor (80) that also corresponds to a direction of anisotropy of a layer of the magnetoresistive sensor, a device for measuring the variation in resistance of the magnetoresistive sensor (80) and means for determining the external magnetic field H to be measured from the measured resistance variation, the resistance of the sensor being subjected to a monotonic variation function.

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