Resonant circuit with two partial inductances

Details Resonant circuit with two partial inductances Resonant circuit with two partial inductances

1978-05-31

1982-06-01

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

Displacement

324236, 266 76, 21912434, G01B 714, G01R 3312

Patent

active

043330525

ABSTRACT:
A control circuit for measuring the distance between a workpiece and an electrode which is formed as inductance and is part of a resonant circuit as a frequency-determining element whereby the frequency variations of the resonant circuit for producing voltage and/or current changes which are proportional to a distance are connected to a measuring circuit and includes at least two partial inductances in the resonant circuit with one inductance being represented by the electrode and the other being a stationary resonant circuit arranged at a distance from the electrode and in the immediate influence sphere of the workpiece.

REFERENCES:
patent: 2747152 (1956-05-01), Greene
patent: 3217204 (1965-11-01), Nance
patent: 3329906 (1967-07-01), Bringert
patent: 3579068 (1971-05-01), Tschang

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