| 瑞利散射/激光诱导荧光技术用于空气、O2流场的二维瞬态测量 |
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| 引用本文： | 王杰,施翔春,李喜福,肖绪辉,姚建铨.瑞利散射/激光诱导荧光技术用于空气、O2流场的二维瞬态测量[J].光学学报,1999,19(10):375-1380. |
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| 作者姓名： | 王杰 施翔春 李喜福 肖绪辉 姚建铨 |
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| 作者单位： | 天津大学精仪学院激光与光电子研究所教育部光电信息技术科学开放实验室,天津,300072 |
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| 基金项目： | 国家自然科学基金，航空预研经费资助 |
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| 摘 要： | 研究了空气分子的瑞利散射光强及真空紫外激光（波长１９３ｎｍ）诱导Ｏ２荧光强度与温度、密度的关系，给出了一般表达式。指出了可用于测量高速窃据流场中的瞬态密度和温度二维分布。利用带像增强的ＩＣＣ相机获得了室内空气及Ｏ２喷流的瑞利散射及激光诱导氧气荧光流场图像，图像处理后获得了流场的二发布参数。
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| 关 键 词： | 紫外脉冲激光 瑞利散射 激光诱导荧光 空气流场 |
| 收稿时间： | 1998/3/9 |
Instantaneous Two-Dimensional Measurements of Oxygen and Air Flow by Pulsed UV-Rayleigh Scattering and Laser-Induced Fluorescence Image |
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| Wang Jie,Shi Xiangchun,Li Xifu,Xiao Xuhui,Yao Jianquan.Instantaneous Two-Dimensional Measurements of Oxygen and Air Flow by Pulsed UV-Rayleigh Scattering and Laser-Induced Fluorescence Image[J].Acta Optica Sinica,1999,19(10):375-1380. |
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| Authors: | Wang Jie Shi Xiangchun Li Xifu Xiao Xuhui Yao Jianquan |
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| Abstract: | The theory of temperature and density measurements of air flow by Rayleigh scattering and UV (193 nm) laser induced oxygen molecules fluorescence (LIF) are studied. This method befits to instantaneous two dimensional temperature and density measurements of air and Oxygen flow. The Rayleigh scattering of room air as well as oxygen flow LIF image are observed by an intensified CCD videocamera (ICCD) system. The two dimensional flow parameter is obtained after image process. |
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| Keywords: | pulsed UV laser Rayleigh scattering laser induced fluorescence air flow |
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