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介绍了基于土槽的农业机械机组工作速度测试系统的构成，该系统可测试机组的最高工作速度。论述了一种测试机组工作速度的方法。该方法采用计算机软件对机组的转速脉冲信号定时计数，通过计算确定机组的工作速度。实验表明，采用本方法的系统结构简单，可动态显示测试计算数据，具有系统抗干扰能力强、使用直观方便等特点。
This paper introduces the structure of the test system of working speed of agricultural machinery unit based on soil trough. The system can test the maximum working speed of the unit. A method to test the working speed of the unit is discussed. The method uses the computer software to count the speed pulse signal of the unit regularly and determine the working speed of the unit by calculation. Experiments show that the system using this method has the advantages of simple structure, dynamic display of test calculation data, strong anti-interference ability of the system and intuitive and convenient use.