摘要
利用小型激光器驱动飞片技术成功起爆了PETN安全炸药。详细介绍了实验的原理、过程、实验装置、测试方法和实验结果。实验中 ,利用能量 2 0 5mJ、激光脉宽 9 5ns的激光脉冲 ,驱动厚度 5 5 μm、直径约1 0mm铝飞片冲击起爆了密度 1 2g/cm3 的压装PETN炸药 ,冲击速度约 3～ 4 2km/s ,压力脉宽约 2 0 8ns。用简单的冲击起爆判据 (p2 τ =常数 )对实验结果进行了分析 ,结果表明 :实验结果是合理的 ,与理论分析是一致的。
The experimental results such as the critical ignition laser energy density,the relations between the induction times of explosives and the laser energy densities,etc.are described in this paper.On the basis of experimental investigations,two types of laser detonators were developed.The synchronous initiation tests of multiple initiators were succeeded by using multiple branch optical fiber bundles to transmit laser beams.The initiation time divergence of these tests was about the same as that for the general electrical initiators.
出处
《爆炸与冲击》
EI
CAS
CSCD
北大核心
2002年第1期88-91,共4页
Explosion and Shock Waves
关键词
小型激光器
激光驱动飞片
冲击起爆
炸药
实验
mini size laser
laser driven flyer
impacting and detonating
explosive
