Measuring and testing – Liquid level or depth gauge – Immersible electrode type
Patent
1986-08-13
1988-03-29
Yasich, Daniel M.
Measuring and testing
Liquid level or depth gauge
Immersible electrode type
73313, 324 61R, 340620, G01F 2322
Patent
active
047335602
ABSTRACT:
A liquid level sensing system having a sensing head with a pair of mutually insulated metal electrodes, one of the electrodes connected to the output of an amplifier and the other to the input. The gain of the amplifier is sufficienty high such that it will oscillate when the electrodes are immersed in a liquid and will be non-oscillatory when the electrodes are in air. The oscillation of the amplifier is detected to produce a signal corresponding to the presence of a liquid and also its characteristic.
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Introtek International, Inc.
Yasich Daniel M.
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