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

DENG Yun-Fei; ZHANG Wei; JIA Bin; PANG Bao-Jun; CAO Zong-Sheng

doi:10.11858/gywlxb.2011.04.002

Volume 25 Issue 4

Apr 2015

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Chinese Journal of High Pressure Physics > 2011 > 25(4): 296-302 .

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DENG Yun-Fei, ZHANG Wei, JIA Bin, PANG Bao-Jun, CAO Zong-Sheng. A System for Measuring Two-Stage Light Gas Gun Projectile Velocity with Laser Screen and Photodetector[J]. Chinese Journal of High Pressure Physics, 2011, 25(4): 296-302 . doi: 10.11858/gywlxb.2011.04.002

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

doi: 10.11858/gywlxb.2011.04.002

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

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Corresponding author: DENG Yun-Fei
Received Date: 18 Apr 2010
Rev Recd Date: 08 Jul 2010
Issue Publish Date: 15 Aug 2011

Abstract

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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References(13)

References

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

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