| 纳秒脉冲电压同轴电场下有机玻璃和尼龙的闪络特性 |
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| 引用本文： | 文明,洪延姬,王军,杨健.纳秒脉冲电压同轴电场下有机玻璃和尼龙的闪络特性[J].强激光与粒子束,2006,18(7):0-1065. |
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| 作者姓名： | 文明 洪延姬 王军 杨健 |
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| 作者单位： | 1.中国科学院 电工研究所, 北京 1 00080; |
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| 基金项目： | 国家973项目资助课题，新世纪优秀人才支持计划项目资助课题 |
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| 摘 要： | 利用基于SOS的SPG200高压脉冲功率装置研究了有机玻璃(PMMA)和尼龙1010在变压器油中的闪络特性。研究结果表明:闪络电压随内电极直径增加近似指数增加，随闪络距离延长近似线性增加，相应的击穿时延也近似线性增加。受实验条件的影响，有机玻璃和尼龙1010的闪络性能略有差异。同轴径向电场降落集中在内电极表面附近一定径向距离内，同轴电场下的闪络电压主要由内电极表面电场与径向电场分布的均匀程度决定。增加内电极直径和延长闪络距离都可以提高闪络电压，而增加内电极直径的效果更显著。
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| 关 键 词： | 闪络电压 纳秒脉冲 同轴电极 有机玻璃 尼龙 |
| 文章编号： | 1001-4322(2006)07-1061-05 |
| 收稿时间： | 2005-10-20 |
| 修稿时间： | 2006-03-08 |
High speed photography measurement of impulse coupling coefficient based on compound pendulum model |
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| WEN Ming,HONG Yan-ji,WANG Jun,YANG Jian.High speed photography measurement of impulse coupling coefficient based on compound pendulum model[J].High Power Laser and Particle Beams,2006,18(7):0-1065. |
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| Authors: | WEN Ming HONG Yan-ji WANG Jun YANG Jian |
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| Affiliation: | 1.Institute of Electrical Engineering,Chinese Academy of Science,Beijing 100080,China;2.Graduate School of Chinese Academy of Science,Beijing 100039,China |
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| Abstract: | Based on compound pendulum model, a new way is put forward to measure impulse coupling coefficient using high speed photography. The system parameters of the compound pendulum are demarcated by an encoder when impulse is loaded slowly, and after the pulsed laser impacting the pendulum, the maximum angle is measured by CCD camera when impulse is loaded instantaneously, which efficiently solves the problem that the encoder can not distinguish angles due to vibration in the experiment. The result shows that the relative error of demarcating system parameter is below 2%. The results of impulse coupling coefficient have good repeatability with the range of (32.3～32.9)×10-5 N·s·J-1, which is consistent with the data reported by foreign authors for similar laser thruster. |
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| Keywords: | Laser propulsion Impulse coupling coefficient Compound pendulum High speed photography Slow loading Impact loading |
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