E.g.o. Elektro Gerate Blanc U. Fischer

Juergen Schwackenhofer

Eugen Wilde

Wilfried Schilling

Gerhard Goessler

Hans Mohr

Siegbert Berger

Volker Brennenstuhl

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.

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Sulzfeld, Germany

Juergen Schwackenhofer