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论述了可编程控制器（ＰＬＣ）在新开发的车辆踏面外形测量仪中的应用和开发情况。提出了适合踏面外形快速测量的控制程序编程方法，并介绍了实际运用效果。
The application and development of programmable logic controller (PLC) in the newly developed vehicle tread profile measuring instrument are discussed. The control program programming method which is suitable for the rapid measurement of tread profile is put forward and the practical application effect is introduced.