泥沙模型试验是研究泥沙工程问题的重要方法,其试验工作量大,周期长.为了缩短试验周期、提高数据测量的准确性、实现试验过程的自动化,我们研制了一套微机控制和采集系统,实现了流量、流速、水位和沙量数据的自动采集和处理,以及头部流量和尾水位的自动控制.本系统在汉江概化模型中运行使用了半年多,取得了较好的效果. Sediment model test is an important method to study the problem of sediment engineering, and its test workload is large and its period is long. In order to shorten the test period, improve the accuracy of data measurement and realize the automation of the test process, we have developed a microcomputer control and acquisition System to realize the automatic collection and processing of flow, velocity, water level and sediment data, as well as the automatic control of head flow and tail water level.The system has been used for more than half a year in the Hanjiang generalized model and achieved good results.