Aiming at the problems of low installing efficiency and low precision of photoelectric encoder in servo motor production

an automatic calibration system of photoelectric encoder is designed.The system adopts high-precision absolute photoelectric encoder and stepper motor to control the position of servo motor.Upper personal computer（PC） and STM32 micro programmed control unit（MCU） is used as lower PC to control

data acquision and processing of the calibration system

realizing the automation of calibration and improve installation precision.The RAM + RS—485 module can realize incremental optical encoder and absolute encoder data acquisition.Experimental result show that the system can quickly and accurately install different types of photoelectric encoders

which can meet the installation requirements of photoelectric encoders in the actual production process.