I tryed to check how much the shaker works.

I attached the pictures of the fransfer function from input of the shaker's power amplifiler to read out from the accelerometers' gain amplifiler.
The accelerometers are on the shaker's floor.

I didn't tune read out voltage from these accelerometers, so I only be able to refer the shapes of transfer function.

The shaker is MEE-035 made by Akashi Corporation (Fig 3).
The power amplifier for shaker is AME-100made by Akashi (Fig 4).
The accelerometer on shaker's floor are 707LFZ and 710B190 made by TEAC (Fig 5, 6). The manual says that these accelerometers have frequency response from 0.2Hz to 8000Hz and from 0.02Hz to 200Hz respectively.
The gain amplifier for accelerometer is SA-16P and SA-16U made by TEAC (Fig 7).

The input for power amplifiler is 1Vpp. The gain for accelerometer is 200 for 707LFZ and 10 for 710B190.
I set lowpass filter at 100Hz on the gain amplifiler for accelerometers.