Position detecting apparatus for detecting a signal magnetic fie

Details Position detecting apparatus for detecting a signal magnetic fie Position detecting apparatus for detecting a signal magnetic fie

1985-12-09

1988-06-28

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Magnetic

Displacement

324252, 338 32R, G01B 730

Patent

active

047542217

ABSTRACT:
When applying a bias field in the direction of the easy axis of magnetization of a signal field-detecting MR element assembly, a leakage magnetic field of a magnetic recording medium adapted to generate a signal field is applied as the desired bias field without using any exclusive bias field application device. The magnetic recording medium and the thin-film MR element assembly are arranged in a manner that they make a predetermined angle.

REFERENCES:
patent: 4319188 (1982-03-01), Ito et al.
patent: 4570118 (1986-02-01), Tomczak et al.
patent: 4649342 (1987-03-01), Nakamura
"The Origin of Barkhausen Noise in Small Permalloy Magnetoresistive Sensors", C. Tsang and Decker, 3-1981, J. Appl. Phys., pp. 2465-2467.

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