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超声流量测量在很大程度上可以不受管道内部流动液体特性参数的影响,而且同其它许多流量和流速测定法相比有着一个突出的优点,亦即不存在妨障液流的结构。本文介绍的流量测量仪使用了一种带有消除无效信号的时
Ultrasonic flow measurement can be largely independent of the flow characteristics of the liquid inside the pipe and has the outstanding advantage over many other flow and flow measurements that there is no structure that obstructs the flow of liquid. This article describes the use of a flow meter with a valid signal to eliminate invalid