空心阴极微推力器研究进展

Research Progress of Hollow Cathode Micro Thruster

空心阴极微推力器是一种通过空心阴极放电产生高密度的等离子体,并将其喷出产生相应推力的电推力器,具有体积小、结构简单、研制难度小、成本低的优点,非常适合作为微小卫星的电推进系统。概述了空心阴极微推力器的系统组成和工作原理,介绍了国内外空心阴极微推力器的研究进展和发展现状,分析了不同结构的空心阴极微推力器的性能参数和特点,并对其关键技术及发展趋势进行了初步讨论。

The hollow cathode micro thruster produces high-density plasma through the hollow cathode discharge,and then ejects it to generate the corresponding thrust,which is small in volume,simple in structure,small in development difficulty and low in cost,so it is very suitable for the electric propulsion system of micro satellite.The system composition and working principle of hollow cathode micro-thruster are summarized.The research progress and development status of hollow cathode micro-thruster at home and abroad are introduced.The performance parameters and characteristics of hollow cathode micro-thruster with different structures are analyzed.Preliminary discussions were held on key technologies and future trends.