Measurement and Instrumentation
Piezoelectronic accelerometer

 Should use a monitoring source at low input impedance.
 Has a low natural frequency.
 Should be used for high frequencies above 100 Hz.
 Should be used for low frequency.

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Measurement and Instrumentation
In measurement system, the function of the signal manipulating elements is to

 change the quantity under measurement to an analogues signal.
 change the magnitude of the input signal while retaining its identity.
 to perform linear operation like addition and multiplication.
 to perform non liner operation like clipping filtering, chopping and clamping.

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