{"created":"2023-06-20T15:02:25.102642+00:00","id":31505,"links":{},"metadata":{"_buckets":{"deposit":"6df039f9-67a2-49c7-b1b6-0734441ff82f"},"_deposit":{"created_by":1,"id":"31505","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"31505"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00031505","sets":["1887:1890","1896:1898:1899:1910"]},"author_link":["404569","404568","404565","404561","404567","404564","404560","404566","404562","404563"],"item_9_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"A Torquemeter Utilizing Cross-Spring Fluxural Pivots"}]},"item_9_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1974-07","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"3_A","bibliographicPageEnd":"463","bibliographicPageStart":"450","bibliographicVolumeNumber":"10","bibliographic_titles":[{"bibliographic_title":"東京大学宇宙航空研究所報告"}]}]},"item_9_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"スピン安定型の人工衛星で地球に近い軌道を周回するものについて,その姿勢変化を解明しまた制御するためには,衛星の磁気的な諸特性を打上げ瑕前に把握する必要がある.これに関連して今般,科学衛星の磁気的なスピンダンピングトルクを飛しょう前に予知すること,およびスピン速度制御装置の動作試験を行なうことを主目的とする微小トルク測定装置を開発し,今後打上げを予定されている科学衛星に対して実用に供することになった.そこで本報告では,スピンダンピングトルクの測定の観点から本装置を説明する.本装置は微少トルクを微少回転角に変換して測定する方式を採用している.即ち,披測定物をベンディクス社製の十字バネ(cross-spring flexural pivots)で保持し,スピンを模擬するための回転磁界をこれに印加し,発生する(渦電流および磁気ヒステリシス損による)トルクにより生ずるバネの微少回転角を,ヒルガーワット社製のオートコリメータを用いて遠隔計測する.軌道上で衛星に発生するスピンダンピングトルクぱ極めて小さいため,本装置では回転磁界強度およびその回転速度を実際条件より増大することによって,発生トルクを拡大した上で0.1秒角分解能のオートコリメータにて計測できるようになっている. 本装置全体はエアライドにより支えられた除雪今上に乗せられ,また追風ついたてにより空気流動の影響を排除されている.バネ定数の校正は空心コイルまたぱ永久磁石による標準磁気モーメントにより得られる標準トルクによるか,標準畳匪モーメントを持つ物体を装着したときの自由振動周期測定によるかのいずれかの方法で行なわれる.本装置はまた,磁気的トルク以外のトルク測定や慣性モーメントの測定にも使用できる.テストモデルを使用した試験の結果,望ましい条件下では,10dyne-cmに近い微少トルクまで測定可能であることがわかった.以下では,本装置の動作原理,構成,得られた伜匪等について説明する.","subitem_description_type":"Abstract"}]},"item_9_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"In order to measure the magnetic torques on spinning spacecrafts (such as the spin damping torque due to eddy current and magnetic hysteresis losses or the spin-rate control torque), a torque-measuring instrument has been developed which utilizes cross-spring flexural pivots as the restoring torque element for the angular deflection. The measurement is performed by fixing the body to be tested (e. g. the spacecraft) upon the pedestal which is supported by the pivots, and by recording the angular deflection of the pivots detected by an auto-collimator. The coil assemblies for impressing a rotating magnetic field of variable frequency and amplitude around the test-body are provided and enable one to magnify the magnetic torques with respect to the in-orbit values if necessary. The whole instrument is mounted on a seismic protection table and is also protected against the air-flow disturbance by using a screen. Calibration of the instrument is performed either with the known torques generated by standard magnetic moment or by means of free oscillation-frequency measurement on a standard body of known moment of inertia. The instrument can also be used for measuring non-magnetic torques and also for measuring the moment of inertia of a test body. Under favorable conditions, torques down to nearly 10 dyne-cm have been measured. The principle of operation, design and construction, and obtained characteristics are described in this report.","subitem_description_type":"Other"}]},"item_9_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: SA0124407000","subitem_description_type":"Other"}]},"item_9_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"東京大学宇宙航空研究所"}]},"item_9_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0563-8100","subitem_source_identifier_type":"ISSN"}]},"item_9_source_id_24":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00161914","subitem_source_identifier_type":"NCID"}]},"item_9_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"東京大学宇宙航空研究所"},{"subitem_text_value":"東京大学宇宙航空研究所"},{"subitem_text_value":"日立製作所"},{"subitem_text_value":"日立製作所"},{"subitem_text_value":"日立製作所"}]},"item_9_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Institute of Space and Aeroautical Science University of Tokyo"},{"subitem_text_language":"en","subitem_text_value":"Institute of Space and Aeroautical Science University of Tokyo"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"野村, 民也"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"二宮, 敬虔"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"風間, 三郎"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"道野, 敏雄"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"熊坂, 武雄"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"NOMURA, Tamiya","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"NINOMIYA, Keiken","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"KAZAMA, Saburo","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"MICHINO, Toshio","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"KUMASAKA, Takeo","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2020-01-23"}],"displaytype":"detail","filename":"SA0124407.pdf","filesize":[{"value":"1.2 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"SA0124407.pdf","url":"https://jaxa.repo.nii.ac.jp/record/31505/files/SA0124407.pdf"},"version_id":"2d2472cd-9e06-42d3-8fd4-9e69d1f2a786"}]},"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":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"十字バネを用いた微小トルク測定装置","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"十字バネを用いた微小トルク測定装置"}]},"item_type_id":"9","owner":"1","path":["1890","1910"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"31505","relation_version_is_last":true,"title":["十字バネを用いた微小トルク測定装置"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T00:58:06.317822+00:00"}