Metal detecting device with magnetically influenced Hall effect

Details Metal detecting device with magnetically influenced Hall effect Metal detecting device with magnetically influenced Hall effect

1976-12-08

1978-01-03

Corcoran, Robert J.

Electricity: measuring and testing

Magnetic

Displacement

324235, 338 32H, 200 6109, G01R 3312

Patent

active

040669629

ABSTRACT:
A solid state Hall effect sensor is disposed between two magnets having their fields in quadrature with flux from the magnets at least partially cancelling in the Hall element to thereby enable a ferrous element relatively movable with respect to the magnets and sensor to control the output of the sensor.

REFERENCES:
patent: 3179856 (1965-04-01), Kuhrt et al.
patent: 3187127 (1965-06-01), Hess
patent: 3340467 (1967-09-01), Ha

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