Measuring and testing – Liquid level or depth gauge – Immersible electrode type
Patent
1978-04-17
1979-10-02
Gill, James J.
Measuring and testing
Liquid level or depth gauge
Immersible electrode type
G01F 2324
Patent
active
041693779
ABSTRACT:
A level sensing system for determining the quantity of a fluent or flowable material in a container including a level sensor and a monitor wherein the sensor is constructed of a pipe of non-conducting material with pairs of electrodes exposed to the fluent material and connected to resistance bars to produce a proportionate voltage signal across the resistance of the sensor in accordance with the quantity of fluent material. The monitor transforms the signal into a readable output.
REFERENCES:
patent: 2138677 (1938-11-01), Meyer
patent: 2448783 (1948-09-01), Giers et al.
patent: 3461722 (1969-08-01), Martens
patent: 3777177 (1973-12-01), Norkum et al.
Gill James J.
Nalco Chemical Company
Zickert Lloyd L.
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