Thermal detector and method
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United States of America Patent
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Jan 13, 1998
Grant Date -
N/A
app pub date -
Aug 7, 1996
filing date -
Aug 15, 1995
priority date (Note) -
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status (Latency Note)
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Abstract
A thermal imaging system (10) for providing an image representative of an amount of thermal radiation incident to the system is provided. The system (10) includes a thermal detector (28 or 30) made from a layer of temperature sensitive material forming a first element of a signal-producing circuit (54). The first element (28 or 30) has either a resistance or capacitance value depending on its temperature. The system (10) also includes an integrated circuit substrate (32) having a second element (56 or 58) of the signal-producing circuit (54) complementary and electrically coupled to the first element (28 or 30). The signal-producing circuit (54) may produce an output signal having a amplitude. The amplitude of the output signal is monitored as representing an absolute temperature of the detector (28 or 30) so as to determine the amount of thermal energy incident to the system (10).
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