Device for measuring the level of a liquid

Details Device for measuring the level of a liquid Device for measuring the level of a liquid

1980-05-15

1982-11-02

Yasich, Daniel M.

Measuring and testing

Liquid level or depth gauge

Thermal type

331 66, 340622, 374183, G01F 2324, G01K 716

Patent

active

043567282

ABSTRACT:
A device for measuring the level of a liquid, comprising a high temperature coefficient sensor immersed in the liquid, a detection circuit connected to the sensor for delivering a voltage indicative of the level of liquid, a memory circuit to which said voltage is applied, a saw-tooth signal generator circuit and, a comparator. The output signals of the memory circuit and of the saw-tooth signal circuit are coupled to input terminals of the comparator, and a display galvanometer is connected to the output of said comparator.

REFERENCES:
patent: 3299369 (1967-01-01), Vercellotti et al.
patent: 3932852 (1976-01-01), Hill
patent: 4116045 (1978-09-01), Potter
patent: 4150573 (1979-04-01), Iinuma et al.
patent: 4163391 (1979-08-01), Bezard et al.
patent: 4187723 (1980-02-01), Golden et al.
patent: 4215486 (1980-08-01), Heyer et al.
patent: 4253064 (1981-02-01), McBride, Jr.
patent: 4291280 (1981-09-01), Gardner

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