Optoelectronic System for Measuring Warhead Fragments Velocity

摘要：

High-speed warhead fragments velocity measurement is one of the key technologies in investigating damage efficiency of warhead. We have designed and constructed a system to accurately determine the velocity of warhead fragments by measuring the time of flight between two parallel laser screens is presented. Each screen is formed by a laser source, a large photodetector and a retro-reflector. Optical output of the laser source is a collimated beam. The beam passes through cylindrical lens and the slit of photodetector reach to retro-reflector .The energy, reflected by retro-reflector; focus on the active area of photodetector. The system utilizes reflected ray by scotchlite retro-reflector as the start and end signal. And utilizes wideband circuit and data acquiring system to condition and sample signals. Experimental results show the system can measurement velocity are within the range from 20m/s to 2000m/s on target area of lm2 and can perform satisfactorily with a wide range from 2000 be tol00.000lx. The measurement system also can be used to test velocity of projectile.

关键词： laser screen non-contact measurement fragment velocity retro-reflector externalballistics

作者: Ji Liu Donge Zhao Yangjun Li Hanchang Zhou

作者单位: National Key Laboratory on Electronic Testing Technology, Taiyuan, 030051, China Education Ministry National Key Laboratory on Electronic Testing Technology, Taiyuan, 030051, China School of Informati National Key Laboratory on Electronic Testing Technology, Taiyuan, 030051, China National Key Laboratory on Electronic Testing Technology, Taiyuan, 030051, China Education Ministry

会议类型: 国际会议

会议名称: 3rd International Photonics & OptoElectronics Meetings(第三届国际光子与光电子学会议 POEM 2010)

会议地点: 武汉

会议语种:英文

页码: 1-5

在线出版日期: 2010-11-03（万方平台首次上网日期，不代表论文的发表时间）