弹丸激波在激光光幕靶测量中的影响分析  

Analysis of projectile shock wave's influence on measure of laser screen

作　　者：张智诠[1] 王磊[1] 徐达[1] 罗建华[1] 张轶飞[1] 

机构地区：[1]装甲兵工程学院,北京100072

出　　处：《光学技术》2008年第S1期203-205,共3页Optical Technique

摘　　要：分析了弹丸在飞越激光光幕靶时弹丸激波对激光传播的影响。针对难于实际测量由激波形成的空气折射率分布问题,应用弹丸超音速绕流场的数值计算结果和折射定律,借助SolidWorks软件分析了激波内折射率为常数的情况下光线穿过激波时的折射和出射轨迹,并用模拟实验验证了其正确性。讨论了激波对激光光幕靶测量的影响,为光幕靶的设计与应用提供了依据。The shock wave's influence on beam's diffuse is analyzed,when the projectile traverses laser screen.Being difficult to measure air refractivity provoked by shock wave,numerical result based on calculating ultrasonic flowfield and the law of light refraction is employed to analyze the refraction and reflection's trajectory of beam through the shock wave with the refractivity a constant by aid of the SolidWorks software.At the same time,the experiment is simulated to validate its accuracy.Design and application of laser screen can also reference the analysis of projectile shock wave's influence on measure of laser screen theoretically.

关 键 词：激波 激光光幕靶 光的折射 光电探测器 

分 类 号：TJ306[兵器科学与技术—火炮、自动武器与弹药工程]