The weighted average test method for the maximum radius of a laser-induced bubble. (23rd March 2017)

• Record Type: Journal Article
• Authors: Beibei, Li; Ruirui, Li; Bingyang, Wang; Jie, He; Zheng, Ding; Xiumei, Liu
• Is Part Of: Laser physics. Volume 27:Number 5(2017:May)
• Publication Date: 2017-03-23
• Subjects: maximum radius -- weighted average -- cavitation bubble -- optical beam deflection; Lasers -- Periodicals; 621.36605
• DOI: 10.1088/1555-6611/aa63ad
• Languages: English
• ISSNs: 1054-660X

Abstract

Abstract: The weighted average test method for the laser-induced bubble's maximum radius was investigated in the paper. In order to reduce the random error of the measurement results, the weighted factor and weighted average formula of the bubble's maximum radius and its standard deviation were proposed based on the theory of unequal precision measurement. The results indicated that the probability of the characteristic signals obtained by experiment agree well with the theoretical predictions, and the standard deviation for the weighted average maximum radius is smaller than the spatial resolution of the 2D platform. This shows that the weighted average test method can increase the accuracy of the measurement of the maximum radius. These results are useful for measuring the maximum radius and the laser process under water.