摘要
Abstract
Servo motors and stepper motors are commonly used as actuators for posi-tioning control in automation control processes.Servo motor control system has closed-loop feedback numerical operation and other functions with high control accuracy,but the wiring is complicated and costly.Stepper motor is an open-loop control device which has simple wiring,stable control,low cost and other advantages,but due to the limitations of the step angle and the loss of the step and other reasons,the stepper motor has relatively low posi-tioning accuracy.The causes of stepper motor positioning errors are analyzed,and specific methods to improve the positioning accuracy of stepper motors are given.关键词
定位精度/原点校准/步距角/编码器/偏差值Key words
positioning accuracy/origin calibration/step angle/encoder/deviation value分类
计算机与自动化
