Page 19 - Shock and Vibration Overview

Data Acquisition (DAQ) System Selection

Figure 9: Different filter types are compared in the passband on their amplitude response and
phase for a 1,000 Hz 5th order filter.

Which filter you choose will depend on your application; but in general, the Butterworth

filter is best for vibration and the Bessel is best for shock testing. And above all, you
should avoid a system that does not offer some low pass filtering to avoid aliasing.

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