| 自发喇曼成像法在线测量流场组分浓度 |
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| 引用本文： | 赵伟力,多丽萍,闵祥德,桑凤亭. 自发喇曼成像法在线测量流场组分浓度[J]. 强激光与粒子束, 2001, 13(5): 545-548 |
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| 作者姓名： | 赵伟力 多丽萍 闵祥德 桑凤亭 |
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| 作者单位： | 1.中国科学院 大连化学物理研究所，辽宁 大连116023;2.海军大连舰艇学院，辽宁 大连116018 |
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| 基金项目： | 国家 8 63激光技术领域资助 (863 -4 10 -4 )课题 |
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| 摘 要： | 介绍了自发喇曼成像技术实时监测流场组分浓度的方法，利用Nd：YAG脉冲激光器以及ICCD和光谱仪对大气进行了不同实验条件的测试，得到了影响谱线强度及测试精度的几个因素；得到了大气流场各主要成分的自发喇曼散射光谱和绝对浓度，测量误差小于8%。该技术可望在氧碘化学激光器单重态氧发生器物种浓度测定时得以应用以改善O2(1Δ)浓度测试精度较低的现状。
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| 关 键 词： | 自发喇曼散射 在线测量 流场 |
| 文章编号： | 1001-4322(2001)05-0545-04 |
| 收稿时间： | 2001-02-20 |
| 修稿时间： | 2001-02-20 |
Direct measurement of the constituents flow field by the spontaneous Raman imaging technique (I) |
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| ZHAO Wei li ,,DUO Li ping ,MIN Xiang de ,SANG Feng ting. Direct measurement of the constituents flow field by the spontaneous Raman imaging technique (I)[J]. High Power Laser and Particle Beams, 2001, 13(5): 545-548 |
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| Authors: | ZHAO Wei li DUO Li ping MIN Xiang de SANG Feng ting |
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| Affiliation: | 1. Dalian Institute of Chemical and Physics, P.O.Box 110,Dalian 116023, China;2. Dalian Navy Academy, Dalian 116018, China |
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| Abstract: | A spontaneous Raman imaging system has been described which can monitor the constituents of the flow field in real time.We present the results of the species in the atmosphere with a doubled Nd:YAG laser and a single intensified CCD array at the exit of an imaging spectrograph.The output laser energy and the position of the measurement point affect the accuracy of the measurement.The error is calculated to be less than 8%.The measurement precision of O 2(a 1Δ) concentration will be improved largely when the spontaneous Raman imaging technique is applied to monitor chemical oxygen iodine laser singlet oxygen generator performance. |
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| Keywords: | spontaneous Raman scattering measurement in real time flow field |
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