Dynamic range of the shaker controller

Question

What is the dynamic range provided by the shaker controller? What dynamic range is necessary for tests performance?

Answer

Dynamic range for sinusoidal vibration test performance is 80 dB, and 60 dB in the case of broadband random vibration.

Most of the tests are performed within the range of 1-100 g. Acceleration below 1 g almost does not affect the tested specimen. Acceleration over 100 g can be produced only by a powerful electrodynamic shaker system. The range of 1-100g makes only 40 dB. Hence, the specified dynamic range is sufficient for test procedures.