| 时间序列差分干涉术研究激波流场 |
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| 引用本文： | 王建岗,罗景山.时间序列差分干涉术研究激波流场[J].光子学报,1997,26(3):262-266. |
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| 作者姓名： | 王建岗 罗景山 |
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| 作者单位： | 中国科学院西安光学精密机械研究所!陕西西安710068，中国科学院西安光学精密机械研究所!陕西西安710068，中国科学院西安光学精密机械研究所!陕西西安710068，中国科学院西安光学精密机械研究所!陕西西安710068，中国科学院西安光学精密机械研究所!陕西西安710068，兵器工业部203所 |
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| 基金项目： | The item is supported by National Nature Science Fund |
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| 摘 要： | 本文用一种新的时间序列差分干涉术研究模型在超音速风洞中产生的激波流场.实.验中用调Q序列脉冲红宝石激光器作光源,用转镜扫描高速摄影机作为记录设备,结合单Wollaston棱镜差分干涉的方法获得了激波流场的序列差分干涉图.利用图象处理技术对干涉图进行图象处理,人机交互的方式采集数据,用条纹位移转换法将差分干涉图的条纹位移量转换为绝对干涉图的条纹位移量,然后用拉普拉斯变换法计算出了密度的相对分布值.
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| 关 键 词： | 差分干涉术 激波流场 序列脉冲红宝石激光器 高速摄影 |
| 收稿时间： | 1996-05-15 |
TIME-SERIAL DIFFERENTIAL INTERFEROMETRY FOR STUDY OF SHOCKWAVE FLOW |
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| Wang Jiangang, Miao Xinghua,Wang Guozhi,Ji Zhongying, Yan Qian.TIME-SERIAL DIFFERENTIAL INTERFEROMETRY FOR STUDY OF SHOCKWAVE FLOW[J].Acta Photonica Sinica,1997,26(3):262-266. |
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| Authors: | Wang Jiangang Miao Xinghua Wang Guozhi Ji Zhongying Yan Qian |
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| Institution: | 1. Xi’an institute of optics and Precision Mechanics, Academia Sinica, Xi’an, Shaanxi, China 710068;2. The Chinese Department 203 Institute, Chang’an 3#box, Shaanxi, China 710111;3. The Aerodynamic Teaching and Researching Section, Northwestern Polytechnical University, Xi’an, Shaanxi, China 710072 |
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| Abstract: | in this article,A new time-serial differential interferometry is discussed. By use of a serial Q-switched pulse ruby laser light source and a high-speed photographical camera, we apply the differential interferometry to the study of shockwave generated by a model in high-speed air fluid (Mach mumber is 2. 0). The differential interferometry is built up by a schlieren method and a single Wollaston prism. The shockwave photos of time-serial differential Interferometry are obtained. And image-processing technology is applied to process the differential interferogram, the quantitative density distribution of shockwave flow is given. |
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| Keywords: | Differential interferometry Shockwave flow Serial pulse ruby laser I High-speed photography |
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