{"created":"2023-06-20T15:03:37.380221+00:00","id":32839,"links":{},"metadata":{"_buckets":{"deposit":"c4405c18-dd07-4b87-9294-9e3c32dc2f88"},"_deposit":{"created_by":1,"id":"32839","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"32839"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00032839","sets":["1887:1890","1896:1898:1899:1912"]},"author_link":["412045","412044"],"item_9_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1983-03","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"383","bibliographicPageStart":"377","bibliographicVolumeNumber":"6","bibliographic_titles":[{"bibliographic_title":"宇宙科学研究所報告. 特集: 液水/液酸エンジンの開発研究報告"}]}]},"item_9_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"液水/液酸ターボポンプの開発研究において, ポンプの回転数を計測する技術を確立した。ポンプの回転する部分は極低温 (20K) で, 圧力も10kg/cm^2 A程度になっており, 特に液水ポンプは50000rpmの高速で回転している。また, ポンプ流体は水素と酸素でどちらも危険性が高いため, 回転数の検出には十分な注意を払う必要がある。宇宙研では, 永久磁石を回転に伴う磁界の変化をコイルで検出する方法を採用した。この方法は供試体に対して通電する必要がなく安全であるが, 検出コイルの出力波形の歪によってF/V変換器が誤動作するため, この波形整形に苦心した。この論文では宇宙研で開発した回転計測の方法と計測器の改良の推移を報告する。","subitem_description_type":"Abstract"}]},"item_9_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"Rotaoional speed of turbopumps has been measured by a magsetic flux method in which a pick up coil senses magnetic flux of a permanent magnet embedded on The shaft of turbopump. This report presents experiences on the problems arouse in the developmental phase of this instrumentation system and solutio ns to them. Satisfactory performance has been achieved after several improvents such as an adoption of rms proportinal slice level to the input pluse refomation CIRCUIT Which brings noise insesitive chracteristics to the system.","subitem_description_type":"Other"}]},"item_9_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: SA0166608000","subitem_description_type":"Other"}]},"item_9_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宇宙科学研究所"}]},"item_9_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Institute of Space and Astronautical Science"}]},"item_9_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0285-9920","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":"AN00354485","subitem_source_identifier_type":"NCID"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"加勇田, 清勇"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"秋葉, 鐐二郎"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2020-01-24"}],"displaytype":"detail","filename":"SA0166608.pdf","filesize":[{"value":"388.5 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"SA0166608.pdf","url":"https://jaxa.repo.nii.ac.jp/record/32839/files/SA0166608.pdf"},"version_id":"7753f99d-5a91-40db-8567-26ca5f2cd1bf"}]},"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":"液水/液酸ターボポンプ回転計測","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"液水/液酸ターボポンプ回転計測"}]},"item_type_id":"9","owner":"1","path":["1890","1912"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"32839","relation_version_is_last":true,"title":["液水/液酸ターボポンプ回転計測"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T00:22:43.395837+00:00"}