Temperature sensor

Details Temperature sensor Temperature sensor

1992-02-07

1994-05-03

Lateef, Marvin M.

Electrical resistors

Resistance value responsive to a condition

Current and/or voltage

338 25, 338 28, 338238, H01C 710, H01C 304

Patent

active

053091337

ABSTRACT:
In the manner of a tubular heater, a temperature sensor comprises a metallic tubular jacket with internal resistance wire coil embedded in insulating material and closing pieces having electrical connection members, so that a very simple, robust and high temperature-resistant temperature sensor with a measuring range up to e.g. approximately 750.degree. C. is obtained. The temperature sensor jacket can be earthed or grounded. For operating the temperature sensor there is appropriately a test current in the mA range in the case of a test voltage in the mV range, whose temperature-dependent changes are processed by means of an electronic amplifier.

REFERENCES:
patent: 2728833 (1955-12-01), Dickey
patent: 3638303 (1972-02-01), Mochizuki
patent: 3723935 (1973-03-01), Frazier et al.
patent: 4398169 (1983-08-01), Hayashi
patent: 4575705 (1986-03-01), Gotcher
patent: 5117216 (1992-05-01), McQueen

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