Measurement of damping constant of liquid surface wave at low frequency by light diffraction method

QI Jian-xia; MIAO Run-cai; DONG Jun

In order to measure the damping constant of the liquid surface acoustic waves at low-frequency,steady and visible diffraction patterns were obtained by means of diffraction method and it was found that the variation of intensity distribution was related with the position of light spot.After analyzing the relationship between the intensity distribution of the diffraction rings and the liquid surface wave amplitude,the damping constant was obtained.The experimental data are in good agreement with classic hydrodynamics theory,which proves that the diffraction method is applicable for measurement of liquid parameters.

Corresponding author: MIAO Run-cai, rcmiao@snnu.edu.cn;

1. Department of Applied Mathematics & Applied Physics, Xi'an Institute of Posts and Telecommunications, Xi'an 710121, China;

2. Institute of Physics and Information Technology, Shaanxi Normal University, Xi'an 710062, China;

3. Department of Electronics and Information Engineering, Xi'an Institute of Posts and Telecommunications, Xi'an 710121, China

Received Date: 2007-07-04

Accepted Date: 2007-09-25

Available Online: 2008-10-25

Abstract: In order to measure the damping constant of the liquid surface acoustic waves at low-frequency,steady and visible diffraction patterns were obtained by means of diffraction method and it was found that the variation of intensity distribution was related with the position of light spot.After analyzing the relationship between the intensity distribution of the diffraction rings and the liquid surface wave amplitude,the damping constant was obtained.The experimental data are in good agreement with classic hydrodynamics theory,which proves that the diffraction method is applicable for measurement of liquid parameters.

HTML

Reference (18)

[1]	DEVOLDER S,WEVERS M,de MEESTER D.Thin layer thinkness measurements based on the acoustic-optic technique[J].A P L,1996,68(12):1732-1734.
[2]	BRIER R,LEROY O.Surface roughness determination using the a-coustic-optic technique:theory and experiment[J].A P L,1997,75(5):599-601.
[3]	YAMANAKA K,CHO H.Precise velocity measurement of surface acoustic waves on bearing ball[J].A P L,2000,76(19):2797-2799.
[4]	HUANG J,NISSEN J A.Diffraction of light by a focused ultrasonic wave[J].J A P,1992,71(1):70-75.
[5]	DUNCAN D B.Visualization of surface acoustic wave by means of syn-chronous amplitude-modulated illumination[J].Appl Opt,2000,39(17):2888-2895.
[6]	YAN G,XU X D,LU J,et al.The influence of laser source on generated surface acoustic waves[J].Laser Technology,2006,30(3):317-319(in Chinese).
[7]	ZHAO Y,SHEN Zh H,LU J,et al.Laser thermo-elastic generated surface acoustic waves on cylindrical coating-substrate system[J].Laser Technology,2006,30(6):647-649(in Chinese).
[8]	BARTER J D,BEACH K L,LEE P H Y.Collocate and simultaneous measurement of surface slope and amplitude of water waves[J].Review of Scientific Instruments,1993,64(9):2661-2664.
[9]	LEE P H Y,BARTER J D,BEACH K L,et al.Resent advance in ocean-surface characterization by a scanning-laser slope gauge[J].Proc SPIE,1992,1749:234-224.
[10]	LI Q X,ZHAO M,TANG S,et al.Two dimensional scanning laser slope gauge:measurements of ocean-ripple structures[J].Appl Opt,1993,32(24):4590-4597.
[11]	BARTER J D,LEE P H Y.Real-time wave-amplitude spectrum analyzer for air-liquid interfaces[J].A P L,1994,64(15):1896-1898.
[12]	BARTER J D,LEE P H Y.Imaging surface-wave analyzer for liquid surfaces[J].Appl Opt,1997,36(12):2630-2635.
[13]	MIAO R C,ZHAO X F,SHI J.Measurement of low-frequency surfaceacoustic wave on liquid surface by means of laser interference[J].Chinese Journal of Lasers,2004,31(6):752-756(in Chinese).
[14]	MIAO R C,SHI J,ZHAO X F.Determination of the attenuation coe-fficient of surface acoustic wave by means of the light interference[J].Acta Photonica Sinica,2005,34(3):382-385(in Chinese).
[15]	SAKAI K,CHOI P K,TANAKA H,et al.A new light scattering technique for a wide-band ripplon spectroscopy at the MHz region[J].Review of Scientific Instruments,1991,62 (5):1192-1195.
[16]	MIAO R C,YANG Z L.Physical properties of liquid surface wave and its optical diffraction[J].Acta Physica Sinica,1996,46(9):1521-1525(in Chinese).
[17]	MIAO R C,YANG Z L,ZHU J T,et al.Visualization of low-frequecy liquid surface acoustic waves by means of optical diffraction[J].A P L,2002,80(17):3033-3035.
[18]	MIAO R C,TENG X L,YE Q.Nonlinear acoustic-optical effect from liquid surface waves at low-frequency[J].Acta Photonica Sinica,2003,32(10):1264-1267(in Chinese).

Measurement of damping constant of liquid surface wave at low frequency by light diffraction method

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Proportional views