一、概述渠道流量测试目前大都使用速度面积法,以前是使用一台流速仪逐点测量流速,一个断面有数十个测速点,耗时很多。流速不稳定的因素随着测流时间的增加对测流成果的精度影响很大。若采用多点同时测量,可缩短测流时间,是提高成果精度的有力措施,然而老的流速讯号采集仪是用16路光线示波器,得到的讯号照片要用人工处理,才能得到所需的数据,还要计算处理,使一个测流断面的工作时间仍然很长,人中型渠道 First, an overview of the channel flow test At present, most of the use of speed area method, the former is the use of a flowmeter point by point flow measurement, a cross-section of dozens of speed points, a lot of time. The instability of flow rate has a great influence on the accuracy of flow measurement results as the time of flow measurement increases. If using multi-point simultaneous measurement can shorten the current measurement time, it is a powerful measure to improve the accuracy of the result. However, the old flow signal acquisition instrument uses a 16-channel optical oscilloscope, and the signal photos obtained should be manually processed to obtain the required data , But also calculation and processing, so that the working time of a current measurement section is still very long, medium-sized channels