Magnetic sensor for indentifying the position of a test subject

Details Magnetic sensor for indentifying the position of a test subject Magnetic sensor for indentifying the position of a test subject

1995-07-11

1998-07-14

Snow, Walter E.

Electricity: measuring and testing

Magnetic

Displacement

32420724, G01B 714, G01B 520, H01F 1153

Patent

active

057810060

ABSTRACT:
A magnetic distance sensor for acquiring the position of a test subject has an elongated magnetic core that contains crystalline strips and amorphous strips. A measuring winding supplied by a constant current source generates respective voltages, directed oppositely relative to one another, in two coils, so that a differential voltage arises dependent on the position of the test subject. A distance sensor that is insensitive to unwanted magnetic fields is thus obtained.

REFERENCES:
patent: 2989711 (1961-06-01), Smith
patent: 4074185 (1978-02-01), Dardenne
patent: 4774465 (1988-09-01), Nilius
patent: 4866378 (1989-09-01), Redlich
patent: 5204621 (1993-04-01), Hermann et al.

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