IEPE accelerometer consist of an instrumentation amplifier and a constant current source. The current source pumps current into the accelerometer. The circuitry inside of the accelerometer makes it behave like a resistor. The amount of physical phenomena (i.e. acceleration) the transducer is experiencing creates a proportional amount of resistance. Therefore, the returning signal is a voltage proportional to the phenomena. The amplifier allows you to set the input range to take maximum advantage of the incoming signal.
SPECIFICATIONS
Sensitivity
10.2mV/m/s2 (100mV / g) ± 12%, at 80Hz
Frequency response
10 to 1kHz ± 10%; referenc…