摘要
对于频率为几十赫兹的低频衰减液体表面波,结合激光干涉法和激光扫描法,实验得到反衬度很高的调制干涉图样,理论上给出了干涉图样的条纹宽度,条纹分布范围与表面声波振幅之间的解析关系。
A practicable method for liquid-surface acoustic-wave at the frequencies of a few tens Hertz, based on the combination of optical interference and scanning wave slope, has been developed. Moreover, this technique was used to determine the attenuation coefficient of the surface wave at these frequencies in real time.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2005年第3期382-385,共4页
Acta Photonica Sinica
基金
教育部骨干教师基金资助项目(200065)
关键词
光干涉
表面声波
衰减系数
Light Interference
Surface acoustic-waves
Attenuation coefficient
