Oil level detection circuit

Details Oil level detection circuit Oil level detection circuit

1975-02-12

1976-05-18

Envall, Jr., R. N.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307 18, 317DIG3, 340244C, G05D 912

Patent

active

039581578

ABSTRACT:
A circuit for detecting the level of oil in an oil-collecting chamber conning oil floating on water. A pair of electrodes are disposed in the oil-collecting chamber for detecting the presence of oil therein. A sensing circuit, connected between the electrodes and an amplifier, contains a sensing current when water or air surrounds the electrodes. The amplified sensing current switches a transistor on transmitting a d-c voltage to an open type solenoid valve located in an outlet tube thereby closing the valve.

REFERENCES:
patent: 2202197 (1940-05-01), Ewertz
patent: 3335334 (1967-08-01), Albisser
patent: 3603846 (1971-09-01), Toth
patent: 3781839 (1973-12-01), Bodge

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