Heater wire temperature measuring copper shield
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United States of America Patent
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-
Nov 2, 1999
Grant Date -
N/A
app pub date -
Dec 11, 1997
filing date -
Dec 11, 1997
priority date (Note) -
Expired
status (Latency Note)
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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.
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