| 高速扫描相机时间测量不确定度分析 |
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| 引用本文： | 谭显祥.高速扫描相机时间测量不确定度分析[J].光子学报,2002,31(11):1387-1390. |
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| 作者姓名： | 谭显祥 |
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| 作者单位： | 中国科学院流体物理研究所,绵阳,621900 |
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| 摘 要： | 以国内普遍使用的SJZ-30型高速扫描相机为例,用精测转速方法的结果处理数据,转速测量相对合成不确定度小于0.1%,时间间隔测量的相对扩展不确定度为0.2%.扫描速度在像面上的位置误差,采用"中值扫描速度",可予以校正.同时讨论了进一步降低转速测量不确定度和位置误差的方法.
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| 关 键 词： | 高速摄影 高速转镜扫描相机 扫描速度 爆轰物理和冲击波物理 |
| 收稿时间： | 2002/5/13 |
| 修稿时间： | 2002年5月13日 |
THE UNCERTAINTY ANALYSIS OF THE MEASUREMENT RESULTS OF HIGH SPEED ROTATING MIRROR STREAK CAMERA |
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| Tan Xianxiang Institute of Fluid Physics,China Academy of Engineering Physics,Mianyang.THE UNCERTAINTY ANALYSIS OF THE MEASUREMENT RESULTS OF HIGH SPEED ROTATING MIRROR STREAK CAMERA[J].Acta Photonica Sinica,2002,31(11):1387-1390. |
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| Authors: | Tan Xianxiang Institute of Fluid Physics China Academy of Engineering Physics Mianyang |
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| Institution: | Tan Xianxiang Institute of Fluid Physics,China Academy of Engineering Physics,Mianyang 621900 |
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| Abstract: | The method of precision measurement mirror′s rotating speed has been used in the Model SJZ-30 high speed rotating mirror streak camera and practical scanning speed is used to process time interval data.In this way,the related combined standard uncertainty of the measured results of mirror′s rotating speed is less than 0.1% and the related expanded uncertainty of time interval reached 0.2%.The scanning speed position errors on the streak camera′s imaging surface can be corrected,using"mid-value scanning speed".The method to reduce the uncertainty of measurement results of rotating mirror speed and position error of scanning speed are also discussed in the paper. |
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| Keywords: | High speed photography High speed rotating mirror streak camera Scanning speed Detonation and shock waves physics |
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