From All Sensors Corp.
Several pressure sensor manufactures promote product incorporating "dual die compensation." This compensation technique is employed for very low pressure sensors where common mode errors cannot be compensated by any other means for either gage or differential pressure measurements. There are two forms of dual die compensation. One form of dual die compensation incorporates two pressure sensors but only one of the two sensors provides a pressure sensitive output. The second sensor is passive and is used solely to correct for common mode errors. The second form of dual die compensation incorporates two pressure sensors and both sensors provide a pressure sensitive signal.
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