Two-axis geo-magnetic field sensor with elimination of...

Details Two-axis geo-magnetic field sensor with elimination of... Two-axis geo-magnetic field sensor with elimination of...

2011-08-02

2011-08-02

Assouad, Patrick J (Department: 2858)

Electricity: measuring and testing

Magnetic

Magnetometers

C324S247000

Reexamination Certificate

active

07990139

ABSTRACT:
Disclosed is a small-sized two-axis magnetic field sensor having a function to cause a magnetic field canceling an external offset magnetic field. The two-axis magnetic field sensor contains a plane coil disposed on a plane and four sets of magneto-resistance element pairs on a plane parallel to the plane coil. The plane coil includes at least two pairs of parallel conductors, and two magneto-resistance elements cross only a single conductor of the coil. A current for canceling the external offset magnetic field is determined in advance, and while a DC current that causes total magnetic fields of biasing magnetic fields plus a magnetic field for canceling the external offset magnetic field flows through the coil, intermediate potential outputs from the magneto-resistance element pairs are detected to measure a magnetic field direction, such as geo-magnetism.

REFERENCES:
patent: 6529114 (2003-03-01), Bohlinger et al.
patent: 6556007 (2003-04-01), Abe et al.
patent: 6707298 (2004-03-01), Suzuki et al.
patent: 6717403 (2004-04-01), Witcraft et al.
patent: 7138798 (2006-11-01), Abe et al.
patent: 2004/0111906 (2004-06-01), Abe et al.
patent: 2008/0054897 (2008-03-01), Crolly et al.
patent: 2002-516999 (2002-06-01), None
patent: 2002-310659 (2002-10-01), None
patent: 2003-202365 (2003-07-01), None
patent: 3573100 (2004-07-01), None
patent: 2005-502888 (2005-01-01), None

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