Magnetic position sensor with hall probe formed in an air gap of

Details Magnetic position sensor with hall probe formed in an air gap of Magnetic position sensor with hall probe formed in an air gap of

1995-02-01

1998-08-04

Snow, Walter E.

Electricity: measuring and testing

Magnetic

Displacement

32420725, G01B 714, G01B 730, G01R 3306, H01L 4306

Patent

active

057899177

ABSTRACT:
A magnetic position sensor having a thin tubular-shaped permanent magnet that is integral with a coupling shaft. The permanent magnet is mobile in rotation in a main air gap between two parts made of a soft magnetic material. One of the parts is formed by a stator having a secondary air gap in which a Hall probe is housed. The stator is placed coaxially on the inside of the tubular-shaped permanent magnet, with the other magnetic part including a coaxial tubular yoke with the tubular-shaped permanent magnet and defining, with the stator, a cylindrical main air gap.

REFERENCES:
patent: 3184620 (1965-05-01), Liebowitz et al.
patent: 3365594 (1968-01-01), Davidson, Jr.

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