激光平行光幕的爆炸成型弹丸形貌测试技术

Test Technology of Explosively Formed Projectile Morphology Based on Laser Parallel Screens

针对目前爆炸成型弹丸形貌测试普遍使用的脉冲X光摄影法成本昂贵、结构复杂、测试困难的缺点,提出了激光平行光幕形貌测试系统。该系统中,由启动网靶、停止网靶和计时仪组成的区截测速装置测试EFP的速度,激光平行光幕和示波器测试EFP弹丸通过光幕时直径随时间的变化过程。然后将上述测试结果用Matlab软件进行仿真,得出EFP弹丸的形貌。测试与仿真表明:激光平行光幕形貌测试系统可以测试EFP弹丸的速度与形貌,而且成本低廉、可靠性高,可以在大威力战斗部试验中使用。

At present, the pulsed X-ray method is often used to test the parameters explosively formed projectile. However this method is expensive, complex and difficult to operate. A new method is proposed which uses laser parallel screens to test the morphology of EFP. In this system, the combination of starting target, stopping target and timing device is used to test the velocity speed of EFP; laser parallel screens are used to test the diameter changes of EFP projectile; then this paper uses Matlab to simulate the above test results and obtain the morphology of EFP. The test and simulation results show that the system of laser parallel sereens ean be used to test the veloeity and morphology of EFP. This system is low cost, high reliability, and can be used in the test of big powerful warhead exploitive.