Research on photoelectric detection of submillimeter projectile
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摘要: 本文在片光遮挡式弹丸探测技术基础上发展了光电阵列探测亚毫米级弹丸技术,论述了光电阵列探测亚毫米弹丸的技术原理,详细介绍了光电阵列探测系统的探测光路和探测电路设计方案,研制了光电阵列探测系统的动态试验验证装置。在超高速碰撞靶上开展了动态验证试验,试验结果表明,采用光电阵列探测技术,大幅提高了弹丸信号的信噪比,能够可靠探测直径为0.6mm 的高速弹丸,通过分析表明该技术能可靠应用于直径为0.1mm高速弹丸的探测。Abstract: The single flake light projectile detecting technology is used for measuring the pro-jectile velocity exactly in hypervelocity impact test that are usually carried out for space debris re-search.For detecting projectiles with diameter less than 1mm,we develope the photoelectric ar-ray projectile detecting technology based on the single flake light projectile detecting technology. The key problem of detecting projectile with diameter less than 1mm is to increase the intensity of detected signal.It could be resolved by increasing the ratio of the projectile diameter to the flake light width.A test device for the photoelectric array detection system is developed and in-stalled at the hypervelocity ballistic range.A series of tests were carried out at the hypervelocity range,which show that the SNR is enhanced and projectile with diameter of 0.6mm was able to be reliably detected with the photoelectric array detection technology.Data analysis shows that the technology can be used for reliably detecting projectile with diameter of 0.1mm.
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