激光引爆起爆药的机理及其爆轰流场的干涉法研究

RESEARCH ON THE MECHANISM OF DETONATION OF THE PRIMARY HIGH EXPLOSIVE BY LASER AND THE INTERFEROMETRY OF THE EXPLOSION FLOW FIELD

本文从实验上研究小型脉冲YAG激光引爆或引燃起爆药的可能性;在理论上,从激光热引爆的机理简述了激光引燃或引爆的判据。并采用大口径长程F—P型干涉仪,外调制序列脉冲激光源和高速记录装置,获得了起爆药爆轰流场和燃烧温度场的时间序列干涉图,定量计算了爆轰冲击波的传播速度。

This paper studies experimentally the probability with a feeble YAG laser pulse to detonate or ignite the primary high explosive, and describes briefly the criteria of laser ignition or detonation from the point of view of the theory of laser heat detonation mechanism. By using large - aperture and long - path Fabry - Perot interferometer, serial-pulsed He- Ne laser and high speed record device, the time - serial interferograms of the explosive flow field and the combustion temperature field are obtained. With computer image processing, the propagation velocity of the shock wave is calculated quantitatively.