Apparatus for sensing magnetic fields using a coupled film magne

Details Apparatus for sensing magnetic fields using a coupled film magne Apparatus for sensing magnetic fields using a coupled film magne

1994-07-20

1996-03-19

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

Magnetometers

32420721, 324249, 327510, 338 32R, G01R 3309, H01L 4308

Patent

active

055005900

ABSTRACT:
A first magnetically coupled film sensing element and a second magnetically coupled film sensing element are arranged to change resistance in response to a magnetic filed when biased by a current through the elements. A current carrying conductor spaced from the elements sets the magnetization in the elements. A transfer function of the elements is adjusted by varying the current through the elements or the current through the conductor.

REFERENCES:
patent: 4533872 (1985-08-01), Boord et al.
patent: 5247278 (1993-09-01), Pant et al.
C. H. Bajorek, et al, "A Permally Current Sensors", IEEE Transactions on Magnetics, vol. MAG-12, No. 6, Nov. 1976, pp. 813-815.
"Self Biased Magnetoresistive Bridge Configuration for Current Measurement", IBM Technical Dislosure Bulletin, vol. 18, No. 11, Apr. 1976, pp. 3847-3851.
Phillips Technical Publication 268, Phillips Components, May 1990.
"Magnetoresistive Sensors", Bharat B. Pant, Scientific Honeyweller, Fall 1987 pp. 29-34.

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