Liquid level sensing apparatus

Details Liquid level sensing apparatus Liquid level sensing apparatus

1978-03-27

1980-05-20

Myracle, Jerry W.

Measuring and testing

Liquid level or depth gauge

Immersible electrode type

G01F 2326

Patent

active

042033250

ABSTRACT:
A liquid level sensing electrode structure provided by flat cable which has a plurality of insulated conductors cut to various lengths with end portions exposed to provide sensing electrodes is used in a liquid level sensing system. A common electrode is provided for the system. A separate voltage inverter is provided for each sensing electrode and connects with a voltage source to provide a microprocessor compatible signal when liquid is presented to the common electrode and the sensor for the inverter. A liquid utilization apparatus having a liquid sensing system provides a flow of liquid along the electrode structure to prevent sediment buildup.

REFERENCES:
patent: 3653017 (1972-03-01), Parkes
patent: 3741683 (1973-06-01), McTamaney et al.
patent: 3911744 (1975-10-01), Edwards
patent: 3967238 (1976-06-01), Ridpath et al.

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