On the determination of optimum parameter tolerances for a positional servo system: a sensitivity approach

Abstract

Positional servo systems are widely used in the process control industry. In this study a method is proposed by the use of the sensitivities of the transfer function to determine the optimum parameter tolerances. These tolerances keep the deviation of the angular displacement of the output shaft in its tolerance region. The proposed method makes simple the controlling of the system behavior due to parameter variations.