ABSTRACT
The concept of frequency response will be covered and it will be shown how this tool can prove a very practical approach to blending control theory and experimental results. The chapter will end by showing how a previous example, the servo controlled actuator having been translated from a physical system to differential equations, can be taken further to a block diagram where the components have physical meaning and functional connectivity. The frequency response approach will be used to obtain an initial estimate of the feedback that can be employed.
