Capacitive fluid level sensor

Details Capacitive fluid level sensor Capacitive fluid level sensor

1990-05-07

1991-03-19

Griffin, Donald A.

Electricity: electrical systems and devices

Electrostatic capacitors

Variable

29 2542, 73304C, G01F 2326, H01G 700

Patent

active

050015966

ABSTRACT:
A capacitor for a fluid level sensor that has first and second elongated expandable capacitor plates mounted in spaced relationship with respect to each other in a container to form a capacitor for measuring data representing the liquid in the container, the capacitor plates being continuously expandable from a first length to a second length with a given change in the shape of the container. Thus, the capacitor compensates for the change in container shape.

REFERENCES:
patent: 2700901 (1955-02-01), Rickner
patent: 2950426 (1960-08-01), Frome
patent: 2998559 (1961-08-01), Smith
patent: 4295370 (1981-10-01), Bristol

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