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本文介绍了一种测量运动及变形的光学方法,该方法适用于各种弹道研究问题。测试装置由毫瓦功率的He-Ne激光器、光束成型装置、探测系统以及快速数据获取和处理装置组成。光束成型装置产生一个所需的激光光带,光带的宽度可以根据试验的要求调整。活动目标穿过光带,减弱的光强由一个光电探测器系统接收。一个快速瞬变记录器接收该信号并将其存入一个软盘。通过对炮管的运动、弹丸的飞行、目标的命中以及炸药起爆后金属板或柱面位移的研究,证明这种方法是有效的。
This paper presents an optical method for measuring motion and deformation. This method is suitable for a variety of ballistic research problems. The test set consists of a milliwatt He-Ne laser, a beam shaping device, a probing system, and a fast data acquisition and processing unit. The beam shaping device produces a desired laser band, the width of the band can be adjusted according to the test requirements. The moving target passes through the light strip, and the weakened light intensity is received by a photodetector system. A fast transient recorder receives the signal and saves it to a floppy disk. This method is proved to be effective by studying the movement of the barrel, the flight of the projectile, the hitting of the target and the displacement of the metal plate or cylinder after the initiation of the explosive.