The article analyzes and researches for the system how to realize the examination of auto, regulate automatically, etc. The system makes use of spread to feel machine collect speed variable signal. Being CPU, AT89C51 can analyze and deal with the signal.

• 本文对系统如何实现自动检测、自动调节等功能做了详细的分析与研究,利用光电传感器采集点滴的速度变化信号,用AT89C51作为中央处理器进行信号分析与处理,通过步进电机进行控制。