水体深度对激光声信号影响研究
Research on Laser-Induced Acoustic Signals in Different Water Depths
王晓宇 1王江安 1宗思光 1刘涛 1李胜勇1
作者信息
- 1. 海军工程大学电子工程学院,湖北武汉430033
- 折叠
摘要
分析了激光声信号的理论模型.建立了研究不同水深条件下激光声特性的实验平台.研究结果表明:当水体深度在0～100 m范围内逐渐增加时,激光声信号的两个相邻主峰时间间距越来越小;激光等离子体声波的峰值声压逐渐减小;空泡首次溃灭声波的峰值声压在0～20 m范围内逐渐增加,在20～100m范围内逐渐减小;空泡溃灭声波峰值个数减少.
Abstract
The theoretical model of laser-induced acoustic signals is analyzed.The experimental platform is built to research characteristic of laser-induced acoustic signals.With the increase of water depth in 0 ～ 100 m,the time interval of adjacent peak pressures of laser-induced acoustic signals decreases.Peak pressures of acoustic signals induced by laser-plasma decreases.Peak pressures of acoustic signals induced by bubble collapse first increase in 0～20 m,then decrease in 20～100 m.Number of acoustic signals induced by bubble collapse decreases.
关键词
激光光学/空化噪声/光致击穿/激光声Key words
laser optics/cavitation noise/laser-induced optical breakdown/laser-induced acoustic signals引用本文复制引用
基金项目
国家自然科学基金(51109217)
国家自然科学基金(51209210)
装备预研基金(51400010105JB1101)
出版年
2013
NETL
NSTL
维普
万方数据