二级轻气炮遮挡式激光光幕测速系统

邓云飞; 张伟; 贾斌; 庞宝君; 曹宗胜

doi:10.11858/gywlxb.2011.04.002

二级轻气炮遮挡式激光光幕测速系统

doi: 10.11858/gywlxb.2011.04.002

哈尔滨工业大学空间碎片高速撞击研究中心，黑龙江哈尔滨 150080

详细信息

通讯作者:
邓云飞

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出版历程
- 收稿日期: 2010-04-18
- 修回日期: 2010-07-08
- 刊出日期: 2011-08-15

A System for Measuring Two-Stage Light Gas Gun Projectile Velocity with Laser Screen and Photodetector

Hypervelocity Impact Research Center, Harbin Institute of Technology, Harbin 150080, China

More Information

Corresponding author: DENG Yun-Fei

摘要

摘要: 研制了用于测量二级轻气炮毫米级弹丸速度的遮挡式激光测速系统。该系统主要包括测速平台和激光测速仪，采用红光半导体激光器作光源，硅光电二极管为光电探测器。测速平台安装于炮管测速段，具有结构简单紧凑、抗振动、激光光幕易于准直和测量等特点。激光光幕高度为20 mm，避免了弹丸偏离轴线过多时因无法遮断光束导致的测速失败。运用该测速系统进行了一系列二级轻气炮测速实验，成功测量了金属弹丸和非金属弹丸的速度，测速范围为1.58～4.51 km/s。将测量数据与磁测速系统测量数据进行比较，结果表明，该激光测速系统的测量精度高、稳定性好、灵敏度高、抗干扰性强、适用范围广。
- 激光测速 /
- 二级轻气炮 /
- 半导体激光器 /
- 光电二极管
Abstract: A new velocity measurement system is set up for measuring the millimetresized projectile velocity in two-stage light gas gun. The system consists of an installation platform and a laser velocimeter which using red light semiconductor laser as lamp-house and silicon photodiode as photodetector. The platform installed in the barrel test section has numerous advantages of simple structure, aseismic design, easy adjustment and measurement. Using this new measurement system, the metallic and non-metallic projectiles velocities are successfully achieved. Moreover, the velocities of metallic projectile measured by this system are compared with those using magnetic induction sensors. The results show that this system not only has high reliability and accuracy but also high sensitivity, strong anti-interference and wide range of applications.
- laser velocity measurement /
- two-stage light gas gun /
- semicondutor laser /
- photodiode

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参考文献(13)

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