ABSTRACT

A designer uses the time response of a system to determine if his or her design of a control system meets specifications. An accurate solution of the system’s performance can be obtained by deriving the differential equations for the control system and solving them. However, if the response does not meet specifications, it is not easy to determine from this solution just what physical parameters in the system should be changed to improve the response. A designer wishes to be able to predict a system’s performance by an analysis that does not require the actual solution of the differential equations. Also, the designer would like this analysis to indicate readily the manner or method by which this system must be adjusted or compensated to produce the desired performance characteristics.