| 摘要: |
| 在2.45 GHz同轴型微波等离子体推力器中加入磁场可以提高推力器的性能。这是由于磁场的存在,在推力器启动阶段会形成电子回旋共振区;稳定工作时,等离子体获得的焦尔热比没有磁场时高,这些都增加了等离子体吸收的微波能量。以氩气为工质,对外加磁场微波等离子推力器进行了实验研究,结果表明,推力器可以达到较高的耦合效率。对等离子体羽流的诊断则表明,外加磁场提高了推力器谐振腔内工质气体的电离度。 |
| 关键词: 电推进 等离子体 微波 推力器 磁场效应 |
| DOI： |
| 分类号:V439 |
| 基金项目:国家自然科学基金(10575081,90716019);航空基金支持项目(2006ZA53005) |
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| Applied magnetic field effect on coaxial MPT |
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YANG Juan1, YANG Tie-lian2, XU Ying-qiao3, MENG Zhi-qiang4, MAO Gen-wang5, TAN Xiao-qun6
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1.Coll.of Astronautics,Northwestern Polytechnic Univ,Xi’an 710072,China;2.Coll.of Astronautics,Northwestern Polytechnic Univ,Xi’an 710073,China;3.Coll.of Astronautics,Northwestern Polytechnic Univ,Xi’an 710074,China;4.Coll.of Astronautics,Northwestern Polytechnic Univ,Xi’an 710075,China;5.Coll.of Astronautics,Northwestern Polytechnic Univ,Xi’an 710076,China;6.School of Mechatronics,Northwestern Polytechnical Univ,Xi’an 710072,China
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| Abstract: |
| Theoretical analysis shows that applying magnetic field in coaxial microwave plasma thruster with 2.45 GHz can improve the thruster performance in the way,where electron cyclotron resonant layer at thruster startup state contributes to increase microwave energy dissipated in plasma and strong field up to 0.5 T can increase the heap temperature of plasma inside thruster at stable operating state.Experimental measurements of thruster with applied field and operating on argon gas can approach a high coupling efficiency and plasma plume diagnosing deduces a high degree of gas ionizing in thruster cavity.This makes it feasible in operation of microwave plasma thruster with applied magnetic field. |
| Key words: Electric propulsion Plasmas Microwave Thruster Magnetoelectric effect |
