Flux concentrator for magnetic sensors

Details Flux concentrator for magnetic sensors Flux concentrator for magnetic sensors

1989-08-21

1990-10-23

Karlsen, Ernest F.

Electricity: measuring and testing

Electrical speed measuring

Including speed-related frequency generator

338 32H, 32420720, G01R 3306

Patent

active

049655175

ABSTRACT:
A wheel speed sensor comprises a Hall device disposed in a pocket in a cavity of a plastic housing. The cavity is filled with potting compound to capture and enclose the Hall device. Flux issued from a magnet that rotates with the wheel acts upon the Hall device and is concentrated on the Hall device by ferromagnetic fragments interspersed throughout the potting compound.

REFERENCES:
patent: 3225293 (1965-12-01), Wood et al.
patent: 4555120 (1985-11-01), Frait et al.
patent: 4674892 (1987-03-01), Hewitt
patent: 4694247 (1987-09-01), Meili et al.
patent: 4803426 (1989-02-01), Odagawa et al.
patent: 4916394 (1990-04-01), Thompson

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