2021 Fiscal Year Final Research Report
Small electrodeless electric propulsion system with ECR plasma and fluctuating magnetic field
| Project/Area Number |
20K14949
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 24010:Aerospace engineering-related
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| Research Institution | Nagoya University |
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Principal Investigator |
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| Project Period (FY) |
2020-04-01 – 2022-03-31
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| Keywords | 無電極電気推進機 / 高周波プラズマ |
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| Outline of Final Research Achievements |
In this research, I aim to demonstrate a newly proposed electrodeless electric propulsion system for space craft. In this propulsion system, plasma generated with electron cyclotron resonance (ECR), which is the interaction between electrons in magnetic field with specific strength and high-frequency (GHz band) electro-magnetic wave, is accelerated by controlling the magnetic field by a coil. A system capable of radiating a high frequency with a maximum output of about 15 W in the frequency range of 2 GHz to 4 GHz was completed. ECR discharge plasma was successfully created in a tube with a diameter of 10 mm within the target energy range using only permanent magnets. However, the stable generation of plasma in the magnetic field by a coil and a magnet was not successful. Therefore, farther researches are needed to demonstrate this propulsion.
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| Free Research Field |
電気推進機
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| Academic Significance and Societal Importance of the Research Achievements |
本研究で実証を目指す推進機は，長寿命，高燃費な超小型衛星向けの推進機であり，これが実現されれば，超小型衛星によるミッションの幅が大きく広がることが期待される．近年、超小型人工衛星は学術、産業双方の観点から注目を集めており，このことには大きな社会的な意義がある．現在，本推進機の実証にまでは至っていないが，推進機の放電室を模した管内において目標電力内でのプラズマ生成には成功しており，実現に向けた多くの知見を得ることが出来た．今後，加速用のコイルや，さらに安定したプラズマ生成を実現する放電室形状の検討を進め，実現を目指す．
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