| 二次曝光全息术对微波等离子体推进器羽流的诊断及计算机模拟 |
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| 引用本文： | 冯伟,李恩普,张琳,范琦,林榕. 二次曝光全息术对微波等离子体推进器羽流的诊断及计算机模拟[J]. 光子学报, 2005, 34(8): 1233-1236 |
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| 作者姓名： | 冯伟 李恩普 张琳 范琦 林榕 |
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| 作者单位： | 西北工业大学理学院,西安,710072;西北工业大学航天学院,西安,710072 |
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| 摘 要： | 二次曝光全息术是诊断等离子体电子数密度的一个有效测量方法，具有非接触式测量及不受等离子体发光干扰等优点.根据阿贝尔变换公式，通过计算机应用matlab程序数值模拟了各种不同电子数密度状态下的等离子体干涉图.同时拍摄了航天器中微波等离子体推进器羽流的二次曝光全息图，再现了不同状态下的干涉图样.通过分析和对比两次干涉图，得出了羽流的电子数密度.
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| 关 键 词： | 二次曝光全息术 等离子体 羽流 阿贝尔变换 |
| 收稿时间： | 2004-06-23 |
| 修稿时间： | 2004-06-23 |
Double-exposed Holographic Interferometry Diagnose in Microwave Plasma Thruster's Plume and Simulation by Computer |
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| Feng Wei,Li Enpu,Zhang Lin,FAN Qi,Lin Rong. Double-exposed Holographic Interferometry Diagnose in Microwave Plasma Thruster's Plume and Simulation by Computer[J]. Acta Photonica Sinica, 2005, 34(8): 1233-1236 |
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| Authors: | Feng Wei Li Enpu Zhang Lin FAN Qi Lin Rong |
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| Affiliation: | (1 School of Science, Northwestern Polytechnical University,Xi′an 710072 )
(2 College of Astronautics, Northwestern Polytechnical University,Xi′an 710072) |
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| Abstract: | Double-exposed holographic interferometry is an effective means in the plasma number density of electronic diagnosis, for it has such merits as non-contact measurement and non-disturbance by plasma luminescence. According to Abel transform, simulated interferograms of various plasma′s electron densities are obtained;by double-exposed holographic interferometry, interferograms of various spacecraft microwave plasma thruster′s plumes are gotten.The electron density of plume is gained by analyzing and contrasting the measured interferograms and simulated ones. |
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| Keywords: | Double-exposed holographic interferometry Plasma Plume Abel transform |
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