Electronic liquid level gauge

Details Electronic liquid level gauge Electronic liquid level gauge

1982-03-12

1984-04-24

Goldberg, Gerald

Measuring and testing

Liquid level or depth gauge

Immersible electrode type

73304R, G01F 2326

Patent

active

044440510

ABSTRACT:
An electronic liquid level gauge for measuring the level of a liquid contained in a vessel by employing an electrode pair immersed in the liquid. The electrode pair is associated with an oscillator which generates pulses of a repetition period directly proportional to the electrostatic capacity of the electrode pair. A counter is provided which is reset by an oscillator pulse and starts counting reference pulses of a predetermined repetition rate with a predetermined time delay relative to the occurrence of the oscillator pulse.

REFERENCES:
patent: 4083248 (1978-04-01), Maier
patent: 4199984 (1980-04-01), Huddart et al.
patent: 4214479 (1980-07-01), Maier
patent: 4226118 (1980-10-01), Aldrich

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