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针对安全监测领域中的大流量和小流量自动化测量问题,通过环境适应性和信号采集可靠性两方面的比较得出选择小流量自动化测量传感器要重点考虑的内容以及机械式微浮子水位计在自动化测量方面的优点。针对大流量自动化测量过程中使用较多的H-ADCP流量计,本文分析了测量过程中误差的主要来源及环境适应能力,通过安装在渠底,使其与水平面和垂直面均成一定夹角的安装方式,可以获得更为齐全的流速点数据,也能适应水位变幅大,变化频繁的天然河流和渠道,可以提高大流量自动化测量的精度。
Aiming at the problems of large flow rate and small flow rate automatic measurement in the field of safety monitoring, the article mainly considers the choice of small flow rate automatic measurement sensor through the comparison of environmental adaptability and signal acquisition reliability, The advantages. Aiming at the H-ADCP flowmeter which is used more frequently in the process of large flow rate automatic measurement, this paper analyzes the main source of error and environmental adaptability in the process of measurement. By installing at the bottom of the canal, it forms an included angle with the horizontal and vertical planes Installation, you can get a more complete flow point data, but also to adapt to large water level, frequent changes in natural rivers and channels, can improve the accuracy of large flow measurement automation.