Precise measurement technique for the stable acoustic cavitation bubble

Based on the periodic oscillation of the stable acoustic cavitation bubble, we present a precise measurement technique for the bubble evolution. This technique comprises the lighting engineering of pulsing laser beam whose phase can be digitally shifted, and the long distance microphotographics. We...

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Bibliographic Details
Published in:Chinese science bulletin 2005-11, Vol.50 (21), p.2417-2421
Main Authors: Huang, Wei, Chen, Weizhong, Liu, Yanan, Gao, Xianxian, Jiang, Li’an, Xu, Junfeng, Zhu, Yifei
Format: Article
Language:English
Subjects:
周期振动
数字相位转移
显微镜图象
气穴现象
脉冲激光技术
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Summary:Based on the periodic oscillation of the stable acoustic cavitation bubble, we present a precise measurement technique for the bubble evolution. This technique comprises the lighting engineering of pulsing laser beam whose phase can be digitally shifted, and the long distance microphotographics. We used a laser, an acousto-optic modulator, a pulse generator, and a long distance microscope. The evolution of a levitated bubble can be directly shown by a series of bubble＇s images at different phases. Numerical simulation in the framework of the Rayleigh-Plesset bubble dynamics well supported the experimental result, and the ambient radius of the bubble, an important parameter related to the mass of the gas inside the bubble, was obtained at the same time.
ISSN:1001-6538
1861-9541
DOI:10.1007/BF03183629