用于三级轻气炮弹速测量的改进型激光测速系统
发布时间：2018-09-01 16:22
【摘要】：激光测速技术几乎可以满足各类轻气炮实验中的弹速测量要求,具有响应速度快、对弹丸种类和形状无限制等优点。三级轻气炮中弹丸加载速率较高,高温弹前激波的发光干扰给弹丸激光测速带来很大的困难。对弹前激波的发光强度进行了理论分析和估算,并综合采用增加弹道消波装置、改善激光光路、优化测量电路等技术手段,改进了传统激光测速系统,增强了测速系统的抗干扰能力,提高了信噪比,实现了三级轻气炮中非金属弹丸高达8.11 km/s弹速的精确测量。
[Abstract]:Laser velocimetry technique can almost meet the requirements of projectile velocity measurement in various light gas gun experiments, and has the advantages of fast response speed and no restriction on the type and shape of projectiles. The loading rate of the projectile is high in the three-stage light gas gun, and it is very difficult to measure the velocity of the projectile by the luminous interference of the shock wave in front of the high-temperature projectile. The luminous intensity of projectile front shock wave is theoretically analyzed and estimated, and the traditional laser velocity measuring system is improved by adding ballistic wave canceling device, improving laser light path, optimizing measuring circuit and so on. The anti-jamming ability and signal-to-noise ratio (SNR) of the velocimetry system are enhanced, and the accurate measurement of the non-metal projectile velocity up to 8.11 km/s in the three-stage light gas gun is realized.
【作者单位】： 西北核技术研究所;
【分类号】：TN249
本文编号：2217725
[Abstract]:Laser velocimetry technique can almost meet the requirements of projectile velocity measurement in various light gas gun experiments, and has the advantages of fast response speed and no restriction on the type and shape of projectiles. The loading rate of the projectile is high in the three-stage light gas gun, and it is very difficult to measure the velocity of the projectile by the luminous interference of the shock wave in front of the high-temperature projectile. The luminous intensity of projectile front shock wave is theoretically analyzed and estimated, and the traditional laser velocity measuring system is improved by adding ballistic wave canceling device, improving laser light path, optimizing measuring circuit and so on. The anti-jamming ability and signal-to-noise ratio (SNR) of the velocimetry system are enhanced, and the accurate measurement of the non-metal projectile velocity up to 8.11 km/s in the three-stage light gas gun is realized.
【作者单位】： 西北核技术研究所;
【分类号】：TN249
【相似文献】
相关期刊论文 前2条
1 孙悦，陈先猛，，陈攀森，刘福生，周雪芬，张清福;轻气炮低温靶的结构及液态CO2样品的制备技术[J];低温物理学报;1997年02期
2 戴荣,栗保明;电热轻气炮电弧电阻计算及其弹道分析[J];南京理工大学学报;1999年03期
本文编号：2217725
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