BLDCM code plate damage detection system for incremental optical encoder
Kefan Ma, Fang Fang, Yu Guogang, Yi Liangbi · 2010
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.