Automated self calibration in optical detectors
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United States of America Patent
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Feb 19, 2013
Grant Date -
Mar 11, 2010
app pub date -
Sep 9, 2008
filing date -
Sep 9, 2008
priority date (Note) -
Expired
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Abstract
A method and apparatus for automated field calibration of temperature sensors uses a series of readings including a reading of a known source, such as an LED, for use in calculating a factor that is compared to a reference for adjusting the sensor output signal. Calibration readings are taken more frequently after start up to compensate for sensor drift during storage, as opposed to less frequent readings during operation to compensate for slower sensor drift while operational.
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