Stabilization templates for servomechanisms

IN the process of design, the engineer must consider the change in the system transfer function due to corrective networks added either in cascade or in the feedback loop. Instead of a trial-and-error adjustment of the network parameters, templates for different compensating networks can be easily constructed which show the change in gain and phase. The template can be reduced to a single-frequency locus if the problem is one of stabilization of a feedback system, reduction of noise, or adjusting bandwidth and speed of response of a feedback system.