启闭闸门是水利工程中的重要环节,闸门的开度对调节水流大小具有重要意义,因此,精准测量闸门开度对泄洪、灌溉等工程都具有举足轻重的作用。本文从闸门开度测量的原理出发,阐述了闸门开度过程中传感器的选择、微处理器的电路设计、信号采集处理电路的设计、显示电路的设计等,为闸门开度测量工作提供方便。 Opening and closing of the gate is an important part of water conservancy project, the opening of the gate to adjust the size of the water flow is of great significance, therefore, accurate measurement of gate opening on flood discharge, irrigation and other projects have a pivotal role. Based on the principle of gate opening measurement, this paper expounds the selection of sensors, the microprocessor circuit design, the signal acquisition and processing circuit design, the display circuit design and so on, which provides convenience for the gate opening measurement.