Control Theory and Terminology

1.11 Summary

This chapter has discussed the elements of a control system, the basic types of control action, and the energy sources commonly used for controls. Many control systems use combinations of these energy types. An interface between unlike types of energy is provided by relays or transducers. The next chapters discuss the various types of control elements in detail. The chapters following the element descriptions will consider how these elements may be combined to produce control systems of varying degrees of complexity to perform specific functions.