... CHAPTER 1MOTION CONTROLSYSTEMSSclater Chapter 1 5/3/01 9:52 AM Page 1IntroductionA modern motion control system ... example of amotion control system.Fig. 3 Block diagram of a basic closed-loop control system.Sclater Chapter 1 5/3/01 9:52 AM Page 2loops around the motor and load. Variations in velocity, position,and ... aballscrew-driven slide mechanism: (a) rotary encoder, (b) linearencoder, and (c) laser interferometer. Sclater Chapter 1 5/3/01 9:52 AM Page 3motor is shut down from the constant velocity setting, the profiledecelerates...