基于DSP的绝对式光电编码器的电机转速测量

转速测量的精确度与实时性影响着电机调速系统的性能。基于绝对式光电编码器抗干扰能力强,具有掉电记忆功能等优点,及其在电机转子位置测量的广泛应用,设计了基于绝对式光电编码器和数字信号处理器(DSP)的转速测量环节。在分析常用测速方法的基础上,采用高精度、高分辨率的M/T法,并设计测速系统的软、硬件,通过试验,验证了设计的正确性。

Motor Velocity Measurement by Absolute Optical Encoder Based on DSP

The precision and real-time performance of motor velocity measurement have influences on speed control system.Absolute encoder which was used extensively in rotor position detection was stable to disturbance and can count number of rotor position during power failure.Based on the advantages of absolute encoder above,a velocity measurement system using absolute encoder and DSP was designed.By analyzing usual method of speed detection,adopting M/T method which has high definition and high resolution,and desig...