Liquid level sensor

Details Liquid level sensor Liquid level sensor

1983-06-17

1985-08-06

Yasich, Daniel M.

Measuring and testing

Liquid level or depth gauge

Thermal type

340622, G01F 2324

Patent

active

045327998

ABSTRACT:
A liquid level sensor includes a sensor coil co-axially positioned within a heater coil. Preferably, the sensor is coiled on a core of thin-walled stainless steel tubing to minimize the thermal conductivity along the axis thereof. The probe provides a continuous measurement of the level of a liquid due to the difference in thermal conductivity between the vapor and the liquid within the reservoir.

REFERENCES:
patent: 2456617 (1948-12-01), Burch
patent: 2978691 (1961-04-01), Beher
patent: 3324722 (1967-06-01), Reicks
patent: 3465315 (1969-09-01), Alexander et al.
patent: 3496773 (1970-02-01), Cornish
patent: 4449403 (1984-05-01), McQueen

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