Device for capacitive level measurement

Details Device for capacitive level measurement Device for capacitive level measurement

1980-10-06

1983-02-15

Yasich, Daniel M.

Measuring and testing

Liquid level or depth gauge

Immersible electrode type

141 83, 141198, 361284, G01F 2326

Patent

active

043733891

ABSTRACT:
A device for measuring the fill level of a liquid medium in a container by easuring the capacitance between electrodes contained in the medium is disclosed. A pair of electrodes in which one of the electrode is divided over its height into two partial surfaces (F1, F2) which are insulated from one another. Each surface forms a partial capacitor (C1, C2) with the other electrode. The divided electrode is characterized in that at least one of the surfaces (F1) or (F2) has a width which increases or decreases over the height of the electrode. By the appropriate combination of the partial capacitances, the level of the medium can be determined as well as a separate determination of the fluid's susceptibility (K).

REFERENCES:
patent: 2824449 (1958-02-01), Childs
patent: 2841161 (1958-07-01), Williamson
patent: 2849882 (1958-09-01), Lee
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patent: 3827300 (1974-08-01), Thaler
patent: 3991614 (1976-11-01), Ditzler
patent: 4133454 (1979-01-01), Arthur et al.
patent: 4176553 (1979-12-01), Wood
patent: 4212202 (1980-07-01), Schmidt

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