Magnetoresistive proximity sensor

Details Magnetoresistive proximity sensor Magnetoresistive proximity sensor

1993-06-14

1994-09-27

Lateef, Marvin M.

Electrical resistors

Resistance value responsive to a condition

Magnetic field or compass

32420721, H01L 4308

Patent

active

053510283

ABSTRACT:
A proximity sensor which has planar magnetoresistive elements lying in the plane of a radial magnetic field. The magnetoresistive elements arranged in a bridge configuration and are magnetically saturated by the radial magnetic field. The proximity sensor detects the approach of a ferromagnetic object by detecting movement of the effective center of the radial magnetic field.

REFERENCES:
patent: 4506211 (1985-03-01), Rothley et al.
patent: 4712064 (1987-12-01), Eckardt et al.
patent: 4725776 (1988-02-01), Onodera et al.
patent: 4853632 (1989-08-01), Nagano et al.
patent: 5038130 (1991-08-01), Eck et al.
patent: 5041784 (1991-08-01), Griebeler

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