Capacitive scheme for measuring the level of a liquid

Details Capacitive scheme for measuring the level of a liquid Capacitive scheme for measuring the level of a liquid

1980-07-17

1981-10-20

Yasich, Daniel M.

Measuring and testing

Liquid level or depth gauge

Immersible electrode type

361284, G01F 2326

Patent

active

042953707

ABSTRACT:
A plurality of conductive strips are situated on a receptacle for receiving a liquid which at least partially comprises dielectric material. A first electrode is commonly situated in spaced relation to each of the conductive strips and provides an electrical signal which is capacitively transmitted between the electrode and each of the conductive strips. A second electrode is commonly situated in spaced relation to each of the conductive strips and the electrical signal is capacitively transmitted between each conductive strip and the second electrode. The electrical signal being capacitively transmitted is modified as the liquid comes in proximity to each conductive strip whereby the level of the liquid is detected.

REFERENCES:
patent: 2691223 (1954-10-01), Oberlin
patent: 2741124 (1956-04-01), Myers
patent: 3230770 (1966-01-01), Hermanson
patent: 3376746 (1968-04-01), Roberts
patent: 3492440 (1970-01-01), Cerbone et al.
patent: 3498131 (1970-03-01), Rickey
patent: 3935739 (1976-02-01), Ells
patent: 3991614 (1976-11-01), Ditzler
patent: 4083038 (1978-04-01), Klebanoff
patent: 4099167 (1978-07-01), Pomerantz et al.
patent: 4145927 (1979-03-01), Larson
patent: 4177421 (1979-12-01), Thornburg
patent: 4209740 (1980-06-01), Marthe et al.
patent: 4212202 (1980-07-01), Schmidt

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