Experimental Testing Technique of Small Fragments with Light Screens
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摘要: 设计并组建了一种阵列式光幕靶测试系统，主要用于测试战斗部正常破片的速度以及破片群分布，尤其是小破片群速度及破片群分布。介绍了激光光幕靶的测试原理，利用该光幕靶进行了室外爆炸动态实验测试，并对实验结果进行了分析。结果表明，该光幕靶能够精确测量尺寸为5 mm的破片速度及破片群分布。Abstract: An experimental testing technique with light screens is developed to measure the velocity and distribution of warhead fragments, especially small fragments.The basic theory and main principle of the light screens were discussed, and dynamic experiments were designed and carried out to test the velocity and distribution of warhead fragments by the light screens.Experimental results show that the light screens can accurately measure the velocity and distribution of the warhead fragments with a dimension of 5 mm.
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Key words:
- light screen /
- warhead fragments /
- velocity measurement /
- fragment distribution
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图 1 光幕靶测速的基本原理
Figure 1. The basic principle of velocity measurement with laser screens
表 1 进入前靶的破片信息
Table 1. Fragmental information of the front laser screen
No. Channel Location Time/(μs) Pulse width/(μs) CH1 CH2 CH3 CH4 CH1 CH2 CH3 CH4 CH1 CH2 CH3 CH4 1 △ △ Quadrant Ⅲ 0.0 0.2 4.5 3.9 2 △ △ Quadrant Ⅲ 48.9 49.2 4.7 4.0 3 △ △ Quadrant Ⅳ 48.9 49.1 4.7 4.9 4 △ △ Quadrant Ⅳ 78.8 78.4 3.4 3.6 5 △ △ Quadrant Ⅰ 120.4 120.2 3.6 3.5 6 △ △ Quadrant Ⅲ 126.2 126.2 3.6 3.5 7 △ △ Quadrant Ⅳ 254.3 254.3 2.5 2.5 8 △ △ Quadrant Ⅲ 420.2 420.4 2.7 3.2 9 △ △ Quadrant Ⅳ 447.5 448.0 4.4 3.9 Note:The triangle represents fragment. 
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表 2 进入后靶的破片信息
Table 2. Fragmental information of the rear laser screen
No. Channel Location Time/(μs) Pulse width/(μs) CH5 CH6 CH7 CH8 CH5 CH6 CH7 CH8 CH5 CH6 CH7 CH8 1 △ △ Quadrant Ⅲ 780.1 780.1 4.1 3.9 2 △ △ Quadrant Ⅰ 792.1 793.3 4.1 5.3 3 △ △ Quadrant Ⅲ 814.2 814.1 5.2 4.9 4 △ △ Quadrant Ⅰ 876.8 877.7 4.6 4.5 5 △ △ Quadrant Ⅳ 1 052.6 1 052.7 5.7 2.5 6 △ △ Quadrant Ⅳ 1 065.2 1 066.3 1.9 2.0 7 △ △ Quadrant Ⅲ 1 499.7 1 498.9 2.1 4.5 8 △ △ Quadrant Ⅲ 1 673.7 1 674.1 2.2 5.1 Note:The triangle represents fragment.
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[1] 杨彦通, 龙洪明.导弹战斗部破片杀伤试验误差分析[J].国防技术基础, 2003(3): 28-29. http://www.cnki.com.cn/Article/CJFDTotal-GFJC200303009.htmYang Y T, Long H M. Error analysis of killing test on fragments of missile warhead[J]. Technology Foundation of National Defence, 2003(3): 28-29. (in Chinese) http://www.cnki.com.cn/Article/CJFDTotal-GFJC200303009.htm [2] Lu S T, Yu A T, Chou C. Electro-optics target for position and speed measurement[J]. IEEE Proc A, 1993, 140(4): 623-628. doi: 10.1117/12.948681 [3] 谢盘海, 曾凡群, 马冰.破片群初速的电探针测量法[J].爆炸与冲击, 1994, 14(4): 363-368. http://www.cqvip.com/Main/Detail.aspx?id=1291241Xie P H, Zeng F Q, Ma B. Electric probe measurement technique of the initial velocities for fragments[J]. Explosion and Shock Waves, 1994, 14(4): 363-368. (in Chinese) http://www.cqvip.com/Main/Detail.aspx?id=1291241 [4] 周承仙, 李仰军, 武锦辉, 等.弹丸速度及弹着点坐标测量系统研究[J].弹道学报, 2008, 20(1): 55-58. http://www.cqvip.com/Main/Detail.aspx?id=27008093Zhou C X, Li Y J, Wu J H, et al. Measuring system of velocity and impact point coordinate of projectiles[J]. Journal of Ballistics, 2008, 20(1): 55-58. (in Chinese) http://www.cqvip.com/Main/Detail.aspx?id=27008093 [5] 贾兆辉, 施浣芳.光幕靶靶面光能分布均匀性的研究[J].西安工业学院学报, 2005, 25(4): 319-322. http://www.cqvip.com/Main/Detail.aspx?id=20385940Jia Z H, Shi H F. Study on the distributing uniformity of light energy on screen[J]. Journal of Xi'an Institute of Technology, 2005, 25(4): 319-322. (in Chinese) http://www.cqvip.com/Main/Detail.aspx?id=20385940 [6] 倪晋平, 田会, 杨雷.战斗部破片速度光幕靶测量方法研究[J].光学技术, 2008, 34(1): 152-155. http://www.cnki.com.cn/Article/CJFDTotal-GXJS200801043.htmNi J P, Tian H, Yang L. A method to measure the velocity of fragments of warhead with light screens[J]. Optical Technique, 2008, 34(1): 152-155. (in Chinese) http://www.cnki.com.cn/Article/CJFDTotal-GXJS200801043.htm -
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