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光ファイバひずみ計測の普及に向けた計測の高精度化についての研究
http://hdl.handle.net/10076/00020164
http://hdl.handle.net/10076/00020164447f774d-a353-44fe-81cc-b86b128940c6
名前 / ファイル | ライセンス | アクション |
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Item type | 報告書 / Research Paper(1) | |||||
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公開日 | 2022-01-24 | |||||
タイトル | ||||||
言語 | ja | |||||
タイトル | 光ファイバひずみ計測の普及に向けた計測の高精度化についての研究 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Research on measurement accuracy improvement for widely using distributed fiber optic strain measurement | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 光ファイバセンシング | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 構造物 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | モニタリング | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ブリルアンスペクトル | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | モデル | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ひずみ | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 変位 | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_18ws | |||||
資源タイプ | research report | |||||
著者 |
成瀬, 央
× 成瀬, 央× 三島, 直行 |
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著者(ヨミ) | ||||||
姓名 | ナルセ, ヒロシ | |||||
言語 | ja-Kana | |||||
著者(ヨミ) | ||||||
姓名 | ミシマ, ナオキ | |||||
言語 | ja-Kana | |||||
著者別名 |
Naruse, Hiroshi
× Naruse, Hiroshi× Mishima, Naoki |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | 空間的にも時間的にも不均一なひずみ下の光ファイバで観測されるブリルアンゲインスペクトル(BGS)の形状をモデル化し、実験によってこのモデルの妥当性を確認した。この研究で構築されたモデルを基に、求めるべきひずみがフーリエ級数で記述されたモデルを新たに構築し、それを、環状構造物に設置された光ファイバで観測されたBGSにあてはめる環状構造物の周方向ひずみ計測方法を開発した。環状構造物を微小梁の集合をみなし、各微小梁の内外周のひずみから断面各部の変位を計測する方法も開発した。シミュレーションと実験によって、断面形状や荷重の分布にかかわらず、これらの方法が高精度にひずみや変位を計測できることを示した。 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The use of fiber optic sensing systems based on Brillouin scattering, which enable long-distance and distributed measurement, is a promising approach to maintaining structures safely and efficiently. In this study, we conducted some researches so that the systems become widely used. Firstly, we constructed the model expressing the shape of the Brillion gain spectrum (BGS) observed in an optical fiber in which nonuniform strains varying spatially and temporally are simultaneously produced. Secondly, we developed a method for measuring the circumferential strain in general ring-shaped structures. In this method, the model which has the unknown strain described by a Fourier series is fitted to the BGS observed in the optical fiber attached to the structures. In addition, we developed a method for measuring the displacement of each part of the structures. The structures are regarded as being composed of small beams and the displacement is calculated from strains in the beams. |
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内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 2016年度~2019年度科学研究費補助金(基盤研究(C))研究成果報告書 | |||||
書誌情報 |
発行日 2020-05-02 |
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フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
出版者 | ||||||
出版者 | 三重大学 | |||||
出版者(ヨミ) | ||||||
ミエダイガク | ||||||
科研費番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 16K01286 | |||||
資源タイプ(三重大) | ||||||
Kaken / 科研費報告書 |