基于增量式光电编码器电机测速系统的设计
Design of motor speed-measuring system based on the incremental photoelectric encoder
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摘要: 采用光电编码器作为电机测速元件,设计了基于增量式光电编码器电机测速系统.该系统中,光电编码器的输出脉冲经斯密特触发器整形后,由单片机进行采集、计算,测得的电机旋转速度和方向由LCD进行显示,测速周期由键盘进行设定,测速算法采用M/T法.该系统测量精度高,可实时显示,适用于运行时振动较小的电机测速.Abstract: The motor speed measuring system based on incremental photoelectric encoder was designed using photoelectric encoder as the component for motor rotating speed. In this system, the output pulse of photoelectric encoder was reshaped by Schmitt triggers, then MCU gathered the signal and calculated the rotating speed value, the motor rotating speed and direction were displayed by the LCD, measurement cycles were set by keyboard and speed measurement algorithm used M/T method. The measurement system had the characteristics of high precision and real-time display, suitable for motor speed-measuring at runtime with smaller vibration.
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