Radiation detector having temperature readout
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United States of America Patent
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Jan 13, 1987
Grant Date -
N/A
app pub date -
Jun 27, 1985
filing date -
Jun 27, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A hand held radiation detector may be used for scanning of a surface from a distance to obtain a gross indication of temperature variations in the surface. The radiation detector is provided with a nosepiece having a conical cup therein which can be placed directly against a surface. The radiation sensor views the surface through the cup to obtain an accurate indication of temperature substantially independent of the emissivity of the surface. The radiation sensor and a temperature sensor are potted with high conductivity material in an insulating sleeve within the nosepiece. The nosepiece is of high conductivity material and is thermally connected to a main housing which serves as a heat sink. Temperature indications are obtained from the sensed radiation indication by means of a piecewise linear gain analog circuit.
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