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弹丸速度测量系统校准方法研究

Calibration Method of Projectile-velocity Measurement System

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【作者】 章启成孔德仁庞忠根刘鑫

【Author】 ZHANG Qi-Cheng1,2,KONG De-Ren1,PANG Zhong-Gen1,LIU Xin1(1.School of Mechanical Engineering,NUST,Nanjing 210094,China;2.School of Automation,Nanjing Institute of Technology,Nanjing 211100,China)

【机构】 南京理工大学机械工程学院南京工程学院自动化学院

【摘要】 给出了国内弹丸速度测量系统常用校准方法,分析了常用校准方法存在的问题及其不合理性。基于数理统计的原理,探讨了用多组无偏、一致、有效的区截装置同时测量弹丸某点的飞行速度,以其速度测量的平均值作为弹丸在该点飞行速度之真值的区截装置的校准方法,并分析了该校准方法的优点。组建了基于光幕靶的弹丸速度测量系统的校准系统,实验和数据处理证明了该方法的可行性,研究结果为定量给出弹丸速度测量不确定性提供了一种行之有效的校准方法。

【Abstract】 The current calibration methods of the projectile-velocity measurement system are introduced,and the problem and the unreasonableness of these methods are analyzed.Based on the principle of the mathematical statistics,the calibration method is investigated that measures the projectile-velocity at the same time by the multi-group zone-block device that is unbiased,uniform and efficient and uses the average of the measured value as the true value of the projectile-velocity at the point.The method advantages are analyzed too.The calibration system of the projectile-velocity measurement system based on the laser screen targets is established.The experiment and the data process prove that the method is not only feasible,but also provides an effective calibration method for quantificationally giving the uncertainty of measuring the projectile-velocity quantitatively.

  • 【文献出处】 南京理工大学学报(自然科学版) ,Journal of Nanjing University of Science and Technology(Natural Science) , 编辑部邮箱 ,2010年01期
  • 【分类号】TJ510.6
  • 【被引频次】19
  • 【下载频次】401
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