超声光栅测液体中的声速

Experiment of Measuring Sound Velocity of Liquid by Ultrasonic Grating

文章对用超声光栅衍射法测定液体声速的原理进行了阐述和分析,介绍了其实验方法。并重点讲述了WSG-I超声光栅声速仪的使用方法及性能以及在实验中应该注意的问题,并且计算了声波在水中的传播速度。最后对超声光栅衍射测量液体中声速的理论,进行了讨论。

This paper introduces the use of the ultrasonic grating and also gives the introduction of functions. The principle of measuring the sound velocity of liquid with the method of ultrasonic diffraction grating is analyzed and the experimental method is introduced systematically, and then the speed of sound is cal- culated. Finally, some discussion and some thought are given about the theory of the measurement of sound velocity in liquid.