测量液体声速的几种方法的探讨

THE DISCUSSION OF SEVERAL METHODS OF MEASING THE LIQUID ACOUSTIL VELOCITY

由于声速与物质的物理属性密切相关 ,故在检测计量中 ,许多被测量量都可直接或间接地转化为声速的测量 ,精确地测量声速具有很重要的现实意义。本文介绍了三种利用超声波测量液体声速的方法 ,并且对超声光栅法、超声干涉法和超声相位法进行了比较实验根据三种方法的测量精度 ,分析了产生误差的原因 。

This paper introduces the methods on how to make use of the ligaid acoustic velocit and do some thorough experiments according to the measuring exactness of the three methods and also analyses the causes of the error and puts forward some improvement of the experimert egaipment.