Circuit arrangement for the electro-thermal measurement of the f

Details Circuit arrangement for the electro-thermal measurement of the f Circuit arrangement for the electro-thermal measurement of the f

1986-12-08

1988-01-12

Recla, Henry J.

Fluent material handling, with receiver or receiver coacting mea

With signal, indicator, recorder, inspection means or exhibitor

Level or pressure in receiver

307118, 141 83, 141192, 7386102, 73204, 73295, G01F 2300

Patent

active

047184663

ABSTRACT:
A circuit arrangement for the electro-thermal measurement of the filling level in the tank of a motor vehicle which includes a resistance sensor adapted to be heated during a heating time of a sampling period. In order to assure that the resistance sensor can cool off again within the sampling period even after several starting attempts of the engine, the sequence control of the circuit arrangement connected with the voltage supply is connected with a further voltage source from which, after turning off the voltage supply, the sequence control is continued to be supplied with voltage by a switching circuit over a time interval which corresponds to the termination of the sampling period.

REFERENCES:
patent: 3603927 (1971-09-01), Osborne
patent: 4229798 (1980-10-01), Rosie et al.
patent: 4319233 (1982-03-01), Matsuoka et al.
patent: 4440200 (1984-04-01), De Vale et al.
patent: 4513616 (1985-04-01), Bezard et al.
patent: 4522237 (1985-06-01), Endo et al.
patent: 4529974 (1985-07-01), Tanaka et al.
patent: 4571991 (1986-02-01), Abe et al.
patent: 4619140 (1986-10-01), Kuhnel
patent: 4627840 (1986-12-01), Cuadra et al.

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