超声光栅测声速

Experiments of Measuring Sound Velocity of Liquid by Ultrasonic Grating

介绍了超声光栅测声速的实验,澄清了实验中的一些问题,并讨论了包括声压大小对实验结果的影响以及时间的累积对实时光栅产生的影响等问题,用数值分析的方式给予解答。

This article describes the experiments of ultrasonic grating. We also explain some phenomena, including influences of sound pressure on the experiments and of real time on diffraction intensities, by way of numerical analysis.