Heater wire temperature measuring copper shield

Details Heater wire temperature measuring copper shield Heater wire temperature measuring copper shield

1997-12-11

1999-11-02

Miska, Vit

Thermal measuring and testing

Temperature measurement

Combined with diverse art device

374183, 29611, 219544, 338 24, 338227, G01K 108, G01K 700, H05B 300, H05B 344

Patent

active

059757566

ABSTRACT:
A method of measuring the temperature of a wire which is surrounded by a layer of insulation includes the step of wrapping the layer of insulation with an electrically and thermally conductive ground shield having two opposing longitudinal ends, one of the ends being electrically grounded. A first relationship is determined between the temperature of the wire and a temperature of the shield. A second relationship is ascertained between an electrical resistance of the shield between the longitudinal ends and the temperature of the shield. The electrical resistance of the shield between the longitudinal ends is measured. The temperature of the wire is established by using the first relationship and the second relationship to correlate the measured electrical resistance of the shield to the temperature of the wire.

REFERENCES:
patent: 1862014 (1932-06-01), Grondahl
patent: 2470653 (1949-05-01), Schulman et al.
patent: 3204462 (1965-09-01), Horne
patent: 3295087 (1966-12-01), Landis et al.
patent: 5221916 (1993-06-01), McQueen
patent: 5885410 (1999-03-01), Berkan

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