Development and control of a prototype permanent-magnet DC linear motor

Most advanced manufacturing processes require precise linear-position control for material transfer, packaging and assembly. To achieve precise linear motion, most of these highperformance manufacturing machines use rotary motors and rotary-to-linear couplers. Although this method is widely used, it has the disadvantages of low accuracy, complex mechanical adjustments, high cost and low reliability. A prototype permanent-magnet DC linear motor that is used as a direct-linear drive for position-control applications is described. Experimental investigation of the motion system indicates that the constructed prototype has response with good accuracy.