High precision electronic digital thermometer
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United States of America Patent
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Aug 12, 1997
Grant Date -
N/A
app pub date -
Apr 3, 1995
filing date -
Apr 3, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A microprocessor controlled high precision electronic digital thermometer which is capable of producing highly accurate temperature readings while using relatively inexpensive components. The digital thermometer of the invention uses a thermistor probe to obtain highly accurate temperature measurements which may be obtained over an extended temperature range. The digital thermometer of the invention is constructed in a manner such that by using relatively inexpensive stable resistors in a bridge, highly accurate temperature readings may be obtained by rapid calibration and recalibration of the bridge in order to obviate the need for expensive precision resistors in the bridge circuit itself.
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