ICP Accelerometer
ICP stands for Integrated Circuit Piezoelectric, and an ICP accelerometer contains within its housing a small integrated circuit which effectively isolates the piezoelectric element from the outside world. A power supply is needed at the signal-conditioning device to supply a constant current of a few milliamperes to the IC. This current is in the same conductor as the signal coming back from the accelerometer, and there must be a series capacitor to isolate the DC source from the signal current.
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