System and method for sensor thermal drift offset compensation
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United States of America Patent
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Jun 12, 2012
Grant Date -
Aug 27, 2009
app pub date -
Dec 1, 2008
filing date -
Feb 22, 2008
priority date (Note) -
Expired
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Abstract
A system and method for compensating for thermal drift. A temperature is measured in a meter as a temperature voltage. The temperature voltage is converted to a digital signal. The digital signal is processed to generate an offset voltage in response to the digital signal. The offset voltage is applied as an input to an amplifier. The amplifier receives as a second input a gauge voltage. An output is generated from the meter that corrects the gauge voltage using the offset voltage to compensate for thermal drift.
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