摘要
以脉冲宽度为10ns的脉冲式GAY激光器为光源,将水、酒精等液体作为工质,进行了激光推进性能测试研究.实验发现水工质在激光能量为85mJ时耦合系数最高,达到了2.93×10-3N/W;而在75mJ处酒精溶液工质的耦合系数最高,达到了2.84×10-3N/W.在此基础上探究了如何控制靶飞行方向和墨水对耦合系数的影响.
Laser propulsion is performed using water and alcohol as propellants with YAG pulse laser of 10 ns. It is found that coupling coefficient of water propellant is up to 2.93 ×10^- N/W when laser energy is 85 mJ. For the alcohol, the coupling coefficient is highest with 2.84×10^- N/W when laser energy is 75 mJ. Furthermore, how to control the flight direction and the influence of ink on the coupling coefficient are investigated.
出处
《物理实验》
北大核心
2009年第1期40-42,共3页
Physics Experimentation
基金
中国地质大学(北京)校内基金项目(No.51900961136)
关键词
激光推进
液体工质
耦合系数
laser propulsion
liquid propellant
coupling coefficient
