The Choice and Comparison of Servo Motors
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In making a choice of the correct motor for a particular need, there are a number of factors to be considered; for example, speed of response, accuracy, and dynamic error due to an external disturbance, coupled with capital costs, reliability, and availability. In the previous chapters, dynamic properties of several types of servo motors were discussed and by obtaining the mathematical model the dynamic performance may be studied. In this chapter, a systematic approach is given for making the choice on the basis of a number of simplified graphs of performance.