A General Theory of Sampling Servo Systems

A comprehensive mathematical theory of servo systems in which the difference between input and output quantities is examined discontinuously at the ends of equal intervals of time is developed, and general formulae are obtained from which the behaviour of any particular system may be deduced. These results are applied to obtain the fundamental equations of the two particular types of system which have been developed practically. Two examples of typical elementary systems are analysed. Recommendations for future work in this field are given.