用于瞬态高速飞片速度测量的光子多普勒测速系统

吴立志; 陈少杰; 叶迎华; 沈瑞琪; 刘卫

doi:doi:10.3788/irla201645.1217001

红外与激光工程, 2016, 45 (12): 1217001, 网络出版: 2017-01-12

用于瞬态高速飞片速度测量的光子多普勒测速系统

Photonic Doppler velocimetry used for instant velocity measurement of high-speed small flyer

论文大纲

吴立志 ^*陈少杰叶迎华沈瑞琪刘卫

作者单位

南京理工大学化工学院, 江苏南京 210094

多普勒效应飞片速度光纤激光器 PDV photonic Doppler velocimetry Doppler effect flyer′s velocity fiber laser

摘要

针对目前VISAR等测速仪在测量瞬态高速小飞片速度时调试复杂、测试成功率低等问题, 基于光子多普勒效应和自混频原理, 采用1 550 nm单模激光, 成功研制了一套光子多普勒测速系统。使用该系统测量了不同激光能量密度下的复合飞片瞬时速度, 结果显示: 该系统测试成功率高, 响应速度快, 获得的速度曲线完整而清晰。与传统的VISAR和F-P干涉测速仪相比, 具有操作简单、测试成功率高、便于携带等非常明显的优势。该系统适用于速度在几百米/s～几千米/s的微小飞片或者微区爆轰的速度测量, 也可应用于常规爆炸流场的测试。

Abstract

Based Doppler shifted effect and self-mixing effect, an all-fiber photonic Doppler velocimetry was developed to solve the problem when VISAR was used to measure high-acceleration flyers, the Doppler-shifted signals often lost. Used this system to measure the laser-driven flyer′s velocity at different energies. The results showed that the PDV system have a high measuring success rate, high react speed, and the calculated results is good. Compared with VISAR and F-P interference velocimetries, the PDV have many advantages such as operation more simple, high measuring success rate, easy for carrying. This system was suitable to measure the velocities of small flyers and small scale detonation which had speeds between hundreds and thousands meters per second, also the usual detonation speed measurement.

参考文献

[1] 吴立志, 沈瑞琪, 徐姣, 等. 激光驱动飞片技术的研究进展[J]. 兵工学报, 2010, 31(2): 219-216.

Wu Lizhi, Shen Ruiqi, Xu Jiao, et al. Research advance in laser-driven flyer technology[J]. Acta Armamentar II, 2010, 31(2): 219-216. (in Chinese)

[2] Maisey M P, Bowden M D. Characterization of detonator performance using photonic Doppler velocimetry[C]//SPIE, 2008, 7070: 70700P.

[3] Mercier P, Bénier J, Frugier P A, et al. Nitromethane ignition observed with embedded PDV optical fibers[C]//New Models and Hydrocodes for Shock Wave Processes in Condensed Matter, 2010, 10: 00016.

[4] Craig M Tarver. Corner turning and shock desensitization experiments plus numerical modeling of detonation waves in the triaminotrinitrobenzene based explosive LX-17[J]. J Phys Chem A, 2010, 114: 2727-2736.

[5] Cenobio H Gallegos, Bruce Marshall, Matthew Teel, et al. Comparison of triature Doppler velocimetry and visar[J]. Journal of Physics: Conference Series, 2010, 244: 032045.

[6] 许祖茂. 固体激光多普勒测速仪研究[D]. 大连: 大连理工大学, 2005: 62-63.

Xu Zumao. The study of laser Doppler velocimeter (LDV) for solid surface[D]. Dalian: Dalian University of Technology, 2005: 62-63. (in Chinese)

[7] 王健, 吴重庆, 宋宏伟, 等. 激光冲击强化靶背面自由表面速度的全光纤光子多普勒测速法测量[J]. 红外与激光工程, 2012, 41(5): 1212-1216.

Wang Jian, Wu Chongqing, Song Hongwei, et al. Velocity measurement of back-free the surface of target after laser shock peening using all-fiber photonic Doppler velocimetry[J]. Infrared and Laser Engineering, 2012, 41(5): 1212-1216. (in Chinese)

[8] 谭华, 翁继东, 王翔. 新一代全光纤激光干涉速度测量系统[C]//第八届全国爆炸力学学术会议论文集, 2007: 275-278.

Tan Hua, Weng Jidong, Wang Xiang. A new all-fiber laser interference velocimetry system[C]//The Proceeding of the Eighth Explosion Conference of China, 2007: 275-278. (in Chinese)

[9] 王飞, 陈朗, 伍俊英, 等. 激光驱动飞片加速特征分析[J]. 强激光与粒子束, 2012, 24(11): 2531-2536.

Wang Fei, Chen Lang, Wu Junying, et al. Acceleration characteristics of flyers driven by pulsed laser beams[J]. High Power Laser and Particle Beams, 2012, 24(11): 2531-2536. (in Chinese)

吴立志, 陈少杰, 叶迎华, 沈瑞琪, 刘卫. 用于瞬态高速飞片速度测量的光子多普勒测速系统[J]. 红外与激光工程, 2016, 45(12): 1217001. Wu Lizhi, Chen Shaojie, Ye Yinghua, Shen Ruiqi, Liu Wei. Photonic Doppler velocimetry used for instant velocity measurement of high-speed small flyer[J]. Infrared and Laser Engineering, 2016, 45(12): 1217001.

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