论文部分内容阅读
相比Kaufmann离子推力器,ECR(Electron Cyclotron Resonance)离子推力器具有无电极腐蚀、无污染、放电气压低、等离子体密度高、能量转换效率高、中和器和放电室能快速起弧等优点。ECR离子推力器因独特的技术优势而使其在微小功率电推进领域受到国内外的广泛研究。国外(主要是日本)小功率ECR离子推力器口径从1~10 cm都取得了小行星探测采样返回的突出成果,国内没有针对应用需求的产品开发研制计划,偏重基础研究,性能也有很大差距,无论是技术还是产品距离微小卫星应用需求还存在很大差距。建议研究的主要方向是磁场位形、变孔栅和碳-碳复合材料栅极。
Compared to the Kaufmann ion thrusters, ECR (Electron Cyclotron Resonance) ion thrusters have the advantages of electrodeless corrosion, no pollution, low discharge pressure, high plasma density, high energy conversion efficiency and rapid arc starting of the neutralizer and discharge chamber . Due to its unique technical advantages, ECR ion thruster has been extensively studied both at home and abroad in the field of low-power electric propulsion. Foreign (mainly Japan) small power ECR ion thruster caliber from 1 ~ 10 cm have made astronomical exploration sampling return outstanding results, there is no domestic product development plans for application requirements, emphasis on basic research, performance is also a big gap , There is still a big gap between the technologies and the needs of the small satellite applications. The main directions suggested for the study are the magnetic field profile, the variable aperture grid, and the carbon-carbon composite gate.