{"created":"2021-03-01T06:50:54.505230+00:00","id":32257,"links":{},"metadata":{"_buckets":{"deposit":"e34c6d7b-44b4-42a7-bb1b-e368898e5789"},"_deposit":{"id":"32257","owners":[],"pid":{"revision_id":0,"type":"depid","value":"32257"},"status":"published"},"_oai":{"id":"oai:repository.dl.itc.u-tokyo.ac.jp:00032257","sets":["80:4453:4489","9:504:4455:4490"]},"author_link":["71996","71997","71998","71999","71992","71993","71994","71995"],"item_4_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Precise Acoustic Ranging System Using Ultrasonic Waves"}]},"item_4_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1999","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"73","bibliographicPageStart":"65","bibliographicVolumeNumber":"5","bibliographic_titles":[{"bibliographic_title":"技術報告"}]}]},"item_4_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The Philippine Sea Plate and Pacific Plate are subducting under the Japanese Islands. Large earthquakes have occurred along these pla te boundaries. It is important to measure the amount of movement of the plate directly for the research of earthquake occurrences. Ultrasonic waves are used for precise positioning of a reference point on the seafloor, where electromagnetic waves and lights are not transmittable in the sea water. For seafloor positioning with a precision of several cm, we developed an acoustic ranging system using linear FM signals around 10 kHz. This report describes the measurement experiments using this system carried out in Osaka Bay. It is confirmed that precision of the acoustic ranging is 3 cm or less by the experiments under the condition of calm water. However, occasionally acoustic signals were disturbed by the multiplex resections at the sea surface and/or the seafloor. It is important that the transducer of the surface unit is installed at the good position apart longer than 1.3 m from reflectors such as the bottom of the ship.","subitem_description_type":"Abstract"}]},"item_4_description_6":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"＜総説＞","subitem_description_type":"Other"}]},"item_4_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"71996","nameIdentifierScheme":"WEKO"}],"names":[{"name":"MATSUO, Shigemitsu"}]},{"nameIdentifiers":[{"nameIdentifier":"71997","nameIdentifierScheme":"WEKO"}],"names":[{"name":"HIRANO, Norio"}]},{"nameIdentifiers":[{"nameIdentifier":"71998","nameIdentifierScheme":"WEKO"}],"names":[{"name":"KATAO, Hiroshi"}]},{"nameIdentifiers":[{"nameIdentifier":"71999","nameIdentifierScheme":"WEKO"}],"names":[{"name":"ANDO, Masataka"}]}]},"item_4_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15083/00032248","subitem_identifier_reg_type":"JaLC"}]},"item_4_publisher_20":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"東京大学地震研究所"}]},"item_4_source_id_10":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA1144042X","subitem_source_identifier_type":"NCID"}]},"item_4_source_id_8":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"13426486","subitem_source_identifier_type":"ISSN"}]},"item_4_text_21":{"attribute_name":"出版者別名","attribute_value_mlt":[{"subitem_text_value":"Earthquake Research Institute，University of Tokyo"}]},"item_4_text_4":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"京都大学防災研究所技術室"},{"subitem_text_value":"地震予知研究センター"},{"subitem_text_value":"Division of Technical Affairs"},{"subitem_text_value":"Research Center for Earthquake Prediction, Disaster Prevention Research Institute, Kyoto University"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"松尾, 成光"}],"nameIdentifiers":[{"nameIdentifier":"71992","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"平野, 憲雄"}],"nameIdentifiers":[{"nameIdentifier":"71993","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"片尾, 浩"}],"nameIdentifiers":[{"nameIdentifier":"71994","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"安藤, 雅孝"}],"nameIdentifiers":[{"nameIdentifier":"71995","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-06-12"}],"displaytype":"detail","filename":"05_065-073.pdf","filesize":[{"value":"1.2MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"05_065-073.pdf","url":"https://repository.dl.itc.u-tokyo.ac.jp/record/32257/files/05_065-073.pdf"},"version_id":"4dde7dcb-3f67-4c0b-8cfb-24292d5803b3"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"supersonic wave","subitem_subject_scheme":"Other"},{"subitem_subject":"GPS","subitem_subject_scheme":"Other"},{"subitem_subject":"chirp radar","subitem_subject_scheme":"Other"},{"subitem_subject":"sea floor","subitem_subject_scheme":"Other"},{"subitem_subject":"crustal movement","subitem_subject_scheme":"Other"},{"subitem_subject":"acoustic ranging","subitem_subject_scheme":"Other"},{"subitem_subject":"multiplex reflection","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":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"超音波を利用した精密音響測距装置の開発","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"超音波を利用した精密音響測距装置の開発","subitem_title_language":"ja"}]},"item_type_id":"4","owner":"1","path":["4489","4490"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2017-05-15"},"publish_date":"2017-05-15","publish_status":"0","recid":"32257","relation_version_is_last":true,"title":["超音波を利用した精密音響測距装置の開発"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2022-12-19T04:08:05.444658+00:00"}