反射式激光测速系统  

Reflecting Laser Velocimetry

作　　者：何远航[1] 魏文[1] 张庆明[1] 

机构地区：[1]北京理工大学爆炸科学与技术国家重点实验室,北京100081

出　　处：《北京理工大学学报》2007年第11期981-983,共3页Transactions of Beijing Institute of Technology

基　　金：国家"八六三"计划项目(2006AA07113)

摘　　要：设计一种用于气体炮的反射式激光测速系统.该系统不仅可以测量气体炮弹丸的着靶速度,而且还可以测量弹丸速度在碰撞过程中的连续变化.研究了该测速系统在工作过程中的功率衰减特性,分析了影响系统测量精度的主要因素,最后确定了该测速系统的测量不确定度优于1.0%.A reflecting laser velocimetry for measuring the projectile velocity is designed. This velocimetry measures not only the impact velocity of a projectile, but also the velocity profile of a projectile penetrating a thick plate. The power attenuation in the light path of the measurement system is investigated, the major factors influencing on the measurement precision are analyzed and the uncertainty which is better than 1.0 % in measurement of this reflecting laser velocimetry is determined.

关 键 词：反射式激光测速仪 弹丸速度 气体炮 光纤探头 

分 类 号：O241.1[理学—计算数学]