The Experimental Criteria for Judging the Maximum Bubble Radius of Laser-Iduced Bubble in Different Ambient Pressures

摘要：

The radius of laser-induced bubble in different ambient pressures is measured by a fiber-optic diagnostic technique based on laser-beam deflection probe (BDP). The experimental criteria for judging the maximum bubble radius are modified. The estimation value of the maximum radius is defined as the arithmetic mean of the value of the detecting distances at which the characteristic waveform signals appear. The estimation of root mean square error is also obtained. The maximum value and the expanding of bubble radius are obtained by means of the BDP signals and the modified criteria. The experimental results show that the less experiment is needed for obtaining the maximum radius, the maximum radius decreases with the ambient pressure increases. These results are useful to the investigations on cavitations and the measuring of bubble.

关键词： ambient pressure optical beam deflection cavitation bubble experimental criteria

作者: Bei-bei Li Hong-chao Zhang Jian Lu Xiao-wu Ni

作者单位: School of science, Nanjing University of Science & Technology, Nanjing 210094, China

会议类型: 国际会议

会议名称: 2011 International Conference on Electronics and Optoelectronics(2011电子学与光电子学国际会议 ICEOE 2011)

会议地点: 大连

会议语种:英文

页码: 61-64

在线出版日期: 2011-07-29（万方平台首次上网日期，不代表论文的发表时间）