WEKO3
アイテム
{"_buckets": {"deposit": "eb3b24c7-73f9-46d0-a9a0-046b28a46573"}, "_deposit": {"created_by": 1, "id": "8027", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "8027"}, "status": "published"}, "_oai": {"id": "oai:jaxa.repo.nii.ac.jp:00008027", "sets": ["1574", "1891"]}, "author_link": ["43956", "43955", "43954", "43957"], "item_5_alternative_title_2": {"attribute_name": "その他のタイトル(英)", "attribute_value_mlt": [{"subitem_alternative_title": "Ground-based experiments of current collection to electrodynamic tether in a high-speed plasma generated by a Hall thruster"}]}, "item_5_biblio_info_10": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2008-05", "bibliographicIssueDateType": "Issued"}, "bibliographicPageEnd": "72", "bibliographicPageStart": "68", "bibliographic_titles": [{"bibliographic_title": "第27回宇宙エネルギーシンポジウム 平成19年度"}, {"bibliographic_title": "The Twenty-seventh Space Energy Symposium", "bibliographic_titleLang": "en"}]}]}, "item_5_description_17": {"attribute_name": "抄録(英)", "attribute_value_mlt": [{"subitem_description": "ElectroDynamic Tether (EDT) is a long, thin conductive string deployed from a spacecraft. Traveling across the geomagnetic field and driving a current inside itself, EDT may be used to reboost/deboost a spacecraft to which EDT is attached. This is made possible by the Lorentz force acting on EDT. It is considered to be an alternative propulsion system for station-keeping, orbit-raising or de-orbiting purpose. EDT needs plasma contactor to collect ionospheric electrons. Bare-tether is one of the most efficient electron collectors. It has an uninsulated portion of the metallic tether itself to collect ionospheric electrons. It is extremely economical propulsion system because it can be operated without propellant. In order to put into practice EDT technology, we still need to solve several problems. One of them is the current-voltage characteristic of an electron collector. There exist some theories. When the radius of the electron collector is smaller than the local Debye length, current collection is limited by Orbital Motion Limit (OML). OML is the upper limit of the current collection in the steady-state collisionless uniform plasma. However, current collection to the bare-tether in space does not always drive OML because it is not taken into account plasma velocity and magnetic field. So ground-based experiments of current collection to a bare-tether were carried out to investigate the influence of surrounding plasma parameters, configuration of bare-tether, magnetic field and plasma velocity on the current-voltage characteristic. An anode-layer-type Hall Thruster was used as a plasma source. We could produce plasma velocity of approximately over 8 km/sec which is orbital velocity in Low Earth Orbit (LEO) where bare-tether is used, varying discharge voltage of Hall thruster. Experimental results showed that plasma velocity and configuration of bare-tether sample affected the current collection. In addition, for all cases, current collection to bare-tether sample was less than that predicted by OML. Accordingly, we need to modify OML when we estimate current collection to bare-tether in space.", "subitem_description_type": "Other"}]}, "item_5_description_32": {"attribute_name": "資料番号", "attribute_value_mlt": [{"subitem_description": "資料番号: AA0063965014", "subitem_description_type": "Other"}]}, "item_5_publisher_8": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "宇宙航空研究開発機構宇宙科学研究本部"}]}, "item_5_publisher_9": {"attribute_name": "出版者(英)", "attribute_value_mlt": [{"subitem_publisher": "Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS)"}]}, "item_5_text_20": {"attribute_name": "その他キーワード", "attribute_value_mlt": [{"subitem_text_value": "エネルギー生成及び変換"}, {"subitem_text_value": "電子及び電気工学"}, {"subitem_text_value": "宇宙船設計、試験及び性能"}]}, "item_5_text_35": {"attribute_name": "JAXAカテゴリ", "attribute_value_mlt": [{"subitem_text_value": "JAXAカテゴリ: シンポジウム・研究会"}]}, "item_5_text_36": {"attribute_name": "JAXAカテゴリ2", "attribute_value_mlt": [{"subitem_text_value": "JAXAカテゴリ2: IS"}]}, "item_5_text_42": {"attribute_name": "シンポジウム区分", "attribute_value_mlt": [{"subitem_text_value": "シンポジウム区分: 002"}]}, "item_5_text_43": {"attribute_name": "DSpaceコレクション番号", "attribute_value_mlt": [{"subitem_text_value": "DSpaceコレクション番号: 7"}]}, "item_5_text_6": {"attribute_name": "著者所属", "attribute_value_mlt": [{"subitem_text_value": "大阪工業大学 工学部 機械工学科"}, {"subitem_text_value": "大阪工業大学 工学部 機械工学科"}]}, "item_5_text_7": {"attribute_name": "著者所属(英)", "attribute_value_mlt": [{"subitem_text_language": "en", "subitem_text_value": "Osaka Institute of Technology Department of Mechanical Engineering, Faculty of Engineering"}, {"subitem_text_language": "en", "subitem_text_value": "Osaka Institute of Technology Department of Mechanical Engineering, Faculty of Engineering"}]}, "item_access_right": {"attribute_name": "アクセス権", "attribute_value_mlt": [{"subitem_access_right": "metadata only access", "subitem_access_right_uri": "http://purl.org/coar/access_right/c_14cb"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "田原, 弘一"}], "nameIdentifiers": [{"nameIdentifier": "43954", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "内海, 良介"}], "nameIdentifiers": [{"nameIdentifier": "43955", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Tahara, Hirokazu", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "43956", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Utsumi, Ryosuke", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "43957", "nameIdentifierScheme": "WEKO"}]}]}, "item_keyword": {"attribute_name": "キーワード", "attribute_value_mlt": [{"subitem_subject": "航空宇宙環境", "subitem_subject_scheme": "Other"}, {"subitem_subject": "宇宙機給電", "subitem_subject_scheme": "Other"}, {"subitem_subject": "テザー衛星", "subitem_subject_scheme": "Other"}, {"subitem_subject": "導電性テザー", "subitem_subject_scheme": "Other"}, {"subitem_subject": "導電体", "subitem_subject_scheme": "Other"}, {"subitem_subject": "ホールスラスタ", "subitem_subject_scheme": "Other"}, {"subitem_subject": "スペースプラズマ", "subitem_subject_scheme": "Other"}, {"subitem_subject": "プラズマコンタクタ", "subitem_subject_scheme": "Other"}, {"subitem_subject": "地球電離層", "subitem_subject_scheme": "Other"}, {"subitem_subject": "低高度地球周回軌道", "subitem_subject_scheme": "Other"}, {"subitem_subject": "磁場", "subitem_subject_scheme": "Other"}, {"subitem_subject": "aerospace environment", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "spacecraft power supply", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "tethered satellite", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "electrodynamic tether", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "electric conductor", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Hall thruster", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "space plasma", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "plasma contactor", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Earth ionosphere", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "low Earth orbit", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "magnetic field", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "jpn"}]}, "item_resource_type": {"attribute_name": "資源タイプ", "attribute_value_mlt": [{"resourcetype": "conference paper", "resourceuri": "http://purl.org/coar/resource_type/c_5794"}]}, "item_title": "高速高密度プラズマを用いた導電性テザーの電子捕集に関する地上実験", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "高速高密度プラズマを用いた導電性テザーの電子捕集に関する地上実験"}]}, "item_type_id": "5", "owner": "1", "path": ["1574", "1891"], "permalink_uri": "https://jaxa.repo.nii.ac.jp/records/8027", "pubdate": {"attribute_name": "公開日", "attribute_value": "2015-03-26"}, "publish_date": "2015-03-26", "publish_status": "0", "recid": "8027", "relation": {}, "relation_version_is_last": true, "title": ["高速高密度プラズマを用いた導電性テザーの電子捕集に関する地上実験"], "weko_shared_id": -1}
高速高密度プラズマを用いた導電性テザーの電子捕集に関する地上実験
https://jaxa.repo.nii.ac.jp/records/8027
https://jaxa.repo.nii.ac.jp/records/8027c88efb6c-9002-44aa-8ec4-d71f34457c1f
Item type | 会議発表論文 / Conference Paper(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2015-03-26 | |||||
タイトル | ||||||
タイトル | 高速高密度プラズマを用いた導電性テザーの電子捕集に関する地上実験 | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 航空宇宙環境 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 宇宙機給電 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | テザー衛星 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 導電性テザー | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 導電体 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ホールスラスタ | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | スペースプラズマ | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | プラズマコンタクタ | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 地球電離層 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 低高度地球周回軌道 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 磁場 | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | aerospace environment | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | spacecraft power supply | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | tethered satellite | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | electrodynamic tether | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | electric conductor | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Hall thruster | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | space plasma | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | plasma contactor | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Earth ionosphere | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | low Earth orbit | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | magnetic field | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||
資源タイプ | conference paper | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
その他のタイトル(英) | ||||||
その他のタイトル | Ground-based experiments of current collection to electrodynamic tether in a high-speed plasma generated by a Hall thruster | |||||
著者 |
田原, 弘一
× 田原, 弘一× 内海, 良介× Tahara, Hirokazu× Utsumi, Ryosuke |
|||||
著者所属 | ||||||
大阪工業大学 工学部 機械工学科 | ||||||
著者所属 | ||||||
大阪工業大学 工学部 機械工学科 | ||||||
著者所属(英) | ||||||
en | ||||||
Osaka Institute of Technology Department of Mechanical Engineering, Faculty of Engineering | ||||||
著者所属(英) | ||||||
en | ||||||
Osaka Institute of Technology Department of Mechanical Engineering, Faculty of Engineering | ||||||
出版者 | ||||||
出版者 | 宇宙航空研究開発機構宇宙科学研究本部 | |||||
出版者(英) | ||||||
出版者 | Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS) | |||||
書誌情報 |
第27回宇宙エネルギーシンポジウム 平成19年度 en : The Twenty-seventh Space Energy Symposium p. 68-72, 発行日 2008-05 |
|||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | ElectroDynamic Tether (EDT) is a long, thin conductive string deployed from a spacecraft. Traveling across the geomagnetic field and driving a current inside itself, EDT may be used to reboost/deboost a spacecraft to which EDT is attached. This is made possible by the Lorentz force acting on EDT. It is considered to be an alternative propulsion system for station-keeping, orbit-raising or de-orbiting purpose. EDT needs plasma contactor to collect ionospheric electrons. Bare-tether is one of the most efficient electron collectors. It has an uninsulated portion of the metallic tether itself to collect ionospheric electrons. It is extremely economical propulsion system because it can be operated without propellant. In order to put into practice EDT technology, we still need to solve several problems. One of them is the current-voltage characteristic of an electron collector. There exist some theories. When the radius of the electron collector is smaller than the local Debye length, current collection is limited by Orbital Motion Limit (OML). OML is the upper limit of the current collection in the steady-state collisionless uniform plasma. However, current collection to the bare-tether in space does not always drive OML because it is not taken into account plasma velocity and magnetic field. So ground-based experiments of current collection to a bare-tether were carried out to investigate the influence of surrounding plasma parameters, configuration of bare-tether, magnetic field and plasma velocity on the current-voltage characteristic. An anode-layer-type Hall Thruster was used as a plasma source. We could produce plasma velocity of approximately over 8 km/sec which is orbital velocity in Low Earth Orbit (LEO) where bare-tether is used, varying discharge voltage of Hall thruster. Experimental results showed that plasma velocity and configuration of bare-tether sample affected the current collection. In addition, for all cases, current collection to bare-tether sample was less than that predicted by OML. Accordingly, we need to modify OML when we estimate current collection to bare-tether in space. | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: AA0063965014 |