Magnetic head for sensing the position of a moving member

Details Magnetic head for sensing the position of a moving member Magnetic head for sensing the position of a moving member

1980-12-11

1983-09-06

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

Displacement

324252, 338 32R, 340347P, G01B 714, G01R 3306

Patent

active

044031874

ABSTRACT:
Disclosed is a magnetic head for use to constitute a position encoder which comprises a magnetic recording medium carrying records provided by a plurality of unit magnets arrayed with a constant pitch .lambda. on the surface of a moving member. The magnetic head is fixedly disposed opposite to the magnetic recording medium to constitute the position encoder. The magnetic head comprises a bridge circuit of four U-shaped arms each of which is formed by a pair of magnetoresistive elements spaced apart by an interval of (.lambda./2)(1+n), where n is zero or a positive integer.

REFERENCES:
patent: 3993946 (1976-11-01), Makino
patent: 4039936 (1977-08-01), Jones et al.
patent: 4119911 (1978-10-01), Johnson
patent: 4255708 (1981-03-01), Wilson
patent: 4274053 (1981-06-01), Ito et al.

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