Non-contacting potentiometer

Details Non-contacting potentiometer Non-contacting potentiometer

1990-01-12

1991-09-17

Wieder, Kenneth A.

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

323298, 323354, 324714, 338334, G01R 2708

Patent

active

050498274

ABSTRACT:
A non-contacting potentiometer includes a resistor and a movable probe which capacitively couples AC signals applied to the resistor to an output terminal. A closed loop control circuit is coupled to the resistor and the probe to compensate for variations in gap spacing between the probe and resistor.

REFERENCES:
patent: 3071758 (1963-01-01), Wolfendale
patent: 3296522 (1967-01-01), Wolfendale
patent: 3479588 (1969-11-01), Makow
patent: 3593115 (1971-07-01), Dym et al.
patent: 3859617 (1975-01-01), Oka et al.
patent: 3924177 (1975-12-01), Lemineur et al.
patent: 3988710 (1976-10-01), Sidor et al.
patent: 4130796 (1978-12-01), Shum
patent: 4206401 (1980-06-01), Meyer
patent: 4290065 (1981-09-01), Gleason
patent: 4352465 (1982-10-01), Grechanlisky et al.
patent: 4434391 (1984-02-01), Swartz et al.
patent: 4788384 (1988-11-01), Bruere-Dawson et al.

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