TEST CIRCUIT FOR MEASURING FIGURE OF MERIT OR ATTENUATION RATIO OF VIBRATING SYSTEMS

摘要

A test circuit for measuring the attenuation ratio of vibrating systems comprises a vibrating system connected to an amplifier in turn connected to a detector responding to average value, and a peak detector connected in parallel to the average detector. The outputs of the two detectors are connected to an adder whose output is applied, through a voltage-to-frequency converter, to a pulse circuit whose outputs are connected to an exciting circuit, to the amplifier and to an integrator.