Objective: Determine the velocity of ultrasonic waves in liquids
The periodic variations of density caused by an ultrasonic standing wave pattern in a liquid act as an optical grating for the diffraction of a monochromatic parallel light beam that is transmitted in the direction perpendicular to the direction of the ultrasound wave. From the diffraction pattern and the known wavelength of the light, it is possible to determine the sound wavelength and use that to calculate the velocity of sound in the liquid.
![Experiment: Debye-Sears Effect, 8000571 [UE1070550], Acoustics](/imagelibrary/UE1070550/UE1070550_01_Experiment-Debye-Sears-Effect.jpg)
![Experiment: Debye-Sears Effect, 8000571 [UE1070550], Acoustics](/thumblibrary/UE1070550/UE1070550_01_1200_1200_Experiment-Debye-Sears-Effect.jpg)
![超声凝胶, 1008575 [XP999], 耗材](/thumblibrary/XP999/XP999_01_140_140_超声凝胶.jpg)
![多普勒模拟液体, 1002574 [U10004], 超声波](/thumblibrary/U10004/U10004_01_140_140_多普勒模拟液体.jpg)
![带探头的超声波连续波发生器, 1002576 [U100061], 超声波](/thumblibrary/U100061/U100061_01_140_140_带探头的超声波连续波发生器.jpg)
![用于德拜－塞尔斯效应的激光二级管, 1002577 [U10007], 超声波](/thumblibrary/U10007/U10007_01_140_140_用于德拜-塞尔斯效应的激光二级管.jpg)
![德拜-席尔斯效应实验用激光二极管, 1002579 [U10009], 超声波](/thumblibrary/U10009/U10009_01_140_140_德拜-席尔斯效应实验用激光二极管.jpg)
![超声波回声诊断仪 GS200, 1018616 [U100102], 超声波](/thumblibrary/U100102/U100102_01_140_140_超声波回声诊断仪-GS200.jpg)
![Ultrasonic Probe, 1 MHz, GS200, 1018617 [U100151], 超声波](/thumblibrary/U100151/U100151_01_140_140_Ultrasonic-Probe-1-MHz-GS200.jpg)
![纵波和横波装置工具箱, 1002584 [U10020], 超声波](/thumblibrary/U10020/U10020_01_140_140_纵波和横波装置工具箱.jpg)
![铝制的测试块, 1002585 [U10022], 超声波](/thumblibrary/U10022/U10022_01_140_140_铝制的测试块.jpg)
![袖珍型测量带，2米, 1002603 [U10073], 长度测量](/thumblibrary/U10073/U10073_01_140_140_袖珍型测量带-2米.jpg)
![固定头, 1002827 [U13250], 夹具](/thumblibrary/U13250/U13250_01_140_140_固定头.jpg)
![爪形固定夹, 1002829 [U13253], 夹具](/thumblibrary/U13253/U13253_01_140_140_爪形固定夹.jpg)
![通用夹, 1002830 [U13255], 夹具](/thumblibrary/U13255/U13255_01_140_140_通用夹.jpg)
![平台夹, 1002832 [U13260], 夹具](/thumblibrary/U13260/U13260_01_140_140_平台夹.jpg)
![双联式三脚架座, 1002835 [U13270], 基底](/thumblibrary/U13270/U13270_01_140_140_双联式三脚架座.jpg)
![不锈钢杆 00 mm, 1002932 [U15000], 杆](/thumblibrary/U15000/U15000_01_140_140_不锈钢杆-00-mm.jpg)
![不锈钢杆250 mm, 1002933 [U15001], 杆](/thumblibrary/U15001/U15001_01_140_140_不锈钢杆250-mm.jpg)
![不锈钢杆 470mm, 1002934 [U15002], 杆](/thumblibrary/U15002/U15002_01_140_140_不锈钢杆-470mm.jpg)
![Ripple Tank PM02, 1017591 [U219101], 水波](/thumblibrary/U219101/U219101_01_140_140_Ripple-Tank-PM02.jpg)
![圆筒支脚, 1001046 [U8611210], 脚架材料: 三脚架和桶脚](/thumblibrary/U8611210/U8611210_01_140_140_圆筒支脚.jpg)