Capacitive displacement meter or transducer

Details Capacitive displacement meter or transducer Capacitive displacement meter or transducer

1988-04-13

1989-06-06

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Conductor identification or location

Inaccessible

324 61P, G01R 2726

Patent

active

048375004

ABSTRACT:
A capacitive displacement meter or transducer of co-axial set-up is disclosed. At least one cylindrical inner electrode element is placed coaxially within at least one cylindrical hollow outer electrode element. The inner and outer electrode elements are coaxially movable relatively to each other. One electrode element comprises three axially spaced and aligned, cylindrical electrodes, of which the end electrodes are equally long and the intermediate middle electrode is shorter than the end electrodes. The other electrode element comprises at least one electrode extending coaxially relatively to the electrodes of said one electrode element and, in an inoperative position, being symmetrically juxtaposed to the middle electrode. The middle electrode and the two end electrodes are each provided with terminals.

REFERENCES:
patent: 3210539 (1965-10-01), Malaquin
patent: 3566222 (1971-02-01), Wolfendale
patent: 3570003 (1971-03-01), West
patent: 3812424 (1974-05-01), Abbe
patent: 4052665 (1977-10-01), Gruenwald
patent: 4206401 (1980-06-01), Meyer
patent: 4303919 (1981-12-01), Dimeff
patent: 4584885 (1986-04-01), Cadwell

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