An equalizer for an electro-magnetic vibrator system employing analogue computing techniques

The response characteristics of a typical vibration system are considered and the transfer functions of the various resonances are given. It is shown that by employing analogue computing techniques it is possible to construct an equalizer for the system by simulating the reciprocal of its characteristic. The design for such an equalizer is described and details are given of equipment, which enables satisfactory equalization to be carried out in the frequency range 10¿4000 c/s. The setting-up procedure is explained and details are given of the results obtained.