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| 透射式水工质的高耦合效率激光推进模式 | |
| 引用本文： | 张翼,鲁欣,郑志远,刘峰,朱鹏飞,李汉明,李玉同,李英俊,张杰.透射式水工质的高耦合效率激光推进模式[J].推进技术,2007,28(5):534-537. |
| 作者姓名： | 张翼 鲁欣 郑志远 刘峰 朱鹏飞 李汉明 李玉同 李英俊 张杰 |
| 作者单位： | 1. 中国科学院,物理研究所,北京,100080 2. 中国科学院,物理研究所,北京,100080;中国地质大学,材料科学与工程学院,北京,100083 3. 中国科学院,物理研究所,北京,100080;中国矿业大学,北京,100083 |
| 基金项目： | 国家重点基础研究发展计划(973计划) |
| 摘 要： | 为了提高激光推进的耦合效率,防止光学器件污染,提出了透射式液体工质的激光推进模式。在这种推进模式中,Nd:YAG固体激光器中产生的450 mJ,7 ns激光穿过透明的玻璃基底后,与燃烧室中的液体推进剂相互作用,产生的等离子体在玻璃基底、燃烧室和液体推进剂的约束下膨胀,产生很高效率的动量转换,使靶获得初速度。纯水和黑墨水分别被用作推进剂,通过比较实验结果发现,在这种模式中墨水比水更适合做推进剂。通过改变燃烧室的长度和孔径,得到的耦合系数的最大值为17 858.3 N/MW。 |
| 关 键 词： | 激光推进 液体推进剂 耦合系数 |
| 文章编号： | 1001-4055（2007）05-0534-04 |
| 收稿时间： | 2007-04-25 |
| 修稿时间： | 2007-06-12 |
High coupling coefficient laser propulsion mode |
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| ZHANG Yi,LU Xin,ZHENG Zhi-yuan,LIU Feng,ZHU Peng-fei,LI Han-ming,LI Yu-tong,LI Ying-jun and ZHANG Jie.High coupling coefficient laser propulsion mode[J].Journal of Propulsion Technology,2007,28(5):534-537. | |
| Authors: | ZHANG Yi LU Xin ZHENG Zhi-yuan LIU Feng ZHU Peng-fei LI Han-ming LI Yu-tong LI Ying-jun and ZHANG Jie |
| Institution: | 1. lnst. of Physics, Chinese Academy of Sciences, Beijing 100080, China; 2. School of Materials Science and Technology, China Univ. of Geosciences, Beijing 100083, China ; 3. China Univ. of Mining and Technology, Beijing 100083, China |
| Abstract: | A high coupling coefficient laser propulsion mode--transmitted liquid-confined laser propulsion is proposed. In this mode, 450 mJ ,7 ns laser pulses transmit through a glass substrate and then are focused into the liquid propellant. The plasma generated by laser ablation is confined by the liquid propellant, burning room and glass substrate, and produce high efficient momentum transfer. Both water and ink are tested as propellants. By comparing with water, ink is chosen as a better propellant. The influences of diameter and length of the burning room for holding liquid on the coupling coefficient are studied. The maximum coupling coefficient got in the experiment is up to 17 858.3 N/MW. |
| Keywords: | Laser propulsion Liquid propellant Coupling coefficient |
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