Noise detection and avoidance
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United States of America Patent
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Jun 16, 2015
Grant Date -
Feb 16, 2012
app pub date -
Aug 1, 2011
filing date -
Aug 11, 2010
priority date (Note) -
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Abstract
A process variable transmitter includes a sensor drive controller that outputs a sensor drive signal that is used to drive a sensor that senses a process variable. The sensor drive controller changes the frequency of the sensor drive signal to avoid frequencies and associated harmonics at which noise occurs and which could interfere with the sensor signal.
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