Arrangement for function checking of a temperature sensor

Details Arrangement for function checking of a temperature sensor Arrangement for function checking of a temperature sensor

1994-02-18

1996-06-04

Gutierrez, Diego F. F.

Thermal measuring and testing

Temperature measurement

By electrical or magnetic heat sensor

374208, G01K 716, G01K 114

Patent

active

055226639

ABSTRACT:
A temperature sensor arrangement including a temperature sensor having a measuring element formed as a temperature-dependent variable resistor, and an electronic circuit for function checking of the temperature sensor. The electronic circuit includes a temperature-independent test resistor arranged parallel to the measuring element, first and second semiconductor switches arranged in current circuits of the measuring element and the test resistor, respectively, and a control conductor and a voltage converting element for alternatively connecting the two semiconductor switches to an auxiliary input of the temperature sensor.

REFERENCES:
patent: 4122719 (1978-10-01), Carlson et al.
patent: 4210024 (1980-07-01), Ishiwatari et al.
patent: 4294115 (1981-10-01), Labus
patent: 4816748 (1989-03-01), Tazawa et al.
patent: 5096303 (1992-03-01), Jeziorowski
patent: 5317520 (1994-05-01), Castle

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