BLDCM增量式光电编码器码盘损伤检测系统

BLDCM code plate damage detection system for incremental optical encoder

直流无刷电机(BLDCM)兼有交流电机的结构简单和普通直流电机的高运行效率以及极佳调速性能等特点;尤其在精确定位的伺服系统中得到广泛应用。但在BLDCM高精度伺服定位中起着关键作用的光电编码器码盘在实际安装中常会因为操作不当而对其造成损伤,增大了电机产品的出厂故障率。介绍了基于FPGA设计的光电码盘损伤检测方案,可以快速准确地检测待测BLDCM光电编码器码盘的受损程度。

The brushless DC motor（BLDCM） has both simple structure as AC motor and high operating efficiency as normal brush DC motor.It,as well,has an excellent high-speed performance,and other characteristics.BLDCM is also widely used in precise position control of the servo system.Especially,the code plate of photoelectric encoder plays a key role in BLDCM high-precision servo-positioning.However,the code plate is often damaged because of improper installation in product line.Certainly it increases the failure rate of motor in the assembly line.This article describes a detection system based on FPGA,and this system had been proved that it could quickly detect the damage of BLDCM photoelectric encoder code disk.