Measuring and testing – Liquid level or depth gauge – Thermal type
Patent
1982-04-15
1984-05-22
Goldberg, Gerald
Measuring and testing
Liquid level or depth gauge
Thermal type
G01F 2324
Patent
active
044494041
ABSTRACT:
A thermoelectric level measuring device for measuring the fill level of a container having a filling material therein and a free space above the filling material comprises a series connection of three sensing resistors, the first of which is always surrounded by the filling material, the second of which is intended to be surrounded by the filling material and by the free space and the third of which is always located in the free space and an evaluation circuit connected to each end of the series connection and to the connection points between the sensing resistors.
REFERENCES:
patent: 3485100 (1969-12-01), Petersen
patent: 3631440 (1971-12-01), Cliffgard
patent: 4299126 (1981-11-01), Heuwieser et al.
Bohme Rolf
Rinderle Heinz
Sieber Jurgen
Goldberg Gerald
Roskos Joseph W.
Telefunken electronic GmbH
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