空气压强对激光推进器冲量耦合系数影响  

Influence of air pressure on impulse coupling coefficient of laser thruster

作　　者：胡春波[1] 程翔[1] 何国强[1] 姜立东[1] 彭永林[1] 

机构地区：[1]西北工业大学航天学院,西安710072

出　　处：《固体火箭技术》2007年第2期90-93,共4页Journal of Solid Rocket Technology

摘　　要：设计并加工了激光推进器实验模型,以空气为推进工质,利用脉冲式CO2激光器,研究了空气压强对激光推进器冲量耦合系数影响。实验结果表明,空气压强对激光推进器性能有显著影响。在文中实验条件下,当空气压强大于6 kPa时,激光推进器冲量耦合系数随压强减小而减少较慢;当空气压强小于6 kPa时,激光推进器冲量耦合系数随压强减小而减少很快。The experimental model of laser thruster was designed and made. Taking air as propulsion medium, the effect of pressure on impulse coupling coefficient of laser thruster was investigated by using impulse-ype carbon dioxide laser. The emperimental results show that pressure has Significant effect on impulse coupling coefficient of laser thruster. Under the given emperimental condition, when pressure is more than 6 kPa,impulse coupling coefficient of laser thruster decreases slowly with the decrease of pressure;when pressure is less than 6 kPa,impulse coupling coefficient decreases fast with the decrease of pressure.

关 键 词：激光推进器 冲量耦合系数 空气压强 

分 类 号：V439[航空宇航科学与技术—航空宇航推进理论与工程]