Inductive proximity sensor for detecting magnetic and non-magnet

Details Inductive proximity sensor for detecting magnetic and non-magnet Inductive proximity sensor for detecting magnetic and non-magnet

1996-09-09

1998-06-16

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

With means to create magnetic field to test material

32420726, 324327, 331 65, G01V 310, H03K 1795, H03B 100, G01R 3312

Patent

active

057676720

ABSTRACT:
A universal inductive proximity detector including an oscillator, whose oscillating circuit is powered by a current source. A fixed frequency master oscillator 16, which controls the current source 18, is coupled to the oscillator 10 so that the current source excites the oscillating circuit with a pulsed direct current.

REFERENCES:
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patent: 4182986 (1980-01-01), Parker
patent: 4879512 (1989-11-01), Leonard et al.
patent: 5043679 (1991-08-01), Kriz et al.
patent: 5278523 (1994-01-01), Kriz
patent: 5463354 (1995-10-01), Calder et al.
patent: 5519317 (1996-05-01), Guichard et al.

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