Contactor servomechanisms employing sampled data

A SINUSOIDAL RESPONSE method of analysis and synthesis of a contactor servomechanism employing sampled data in the error channel is introduced. Fig. 1 shows the block diagram of the particular servo system under investigation. Due to the presence of the sampler, clamper, and contactor the system is discontinuous in time as well as being nonlinear. An exact system performance can be obtained only by laborious computations, moreover, no exact analytic solution in closed form can be obtained. However, much can be learned about the system by employing a sinusoidal response technique. Although an approximate method, the sinusoidal method provides a useful guide in analysis and synthesis.