マイクロ波を用いた円形金属管内部における変形検出の試み

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門

発行日: 2013/09/01

タイトル(英語): Deformation Detection Method in a Circular Metallic Tube using Microwaves

著者名: 米田　佑樹（群馬大学大学院工学研究科），羽賀　望（群馬大学大学院工学研究科），本島　邦行（群馬大学大学院工学研究科）

著者名(英語): Yuki Maita (Graduate School of Engineering, Gunma University), Nozomi Haga (Graduate School of Engineering, Gunma University), Kuniyuki Motojima (Graduate School of Engineering, Gunma University)

キーワード: 変形検出，金属管，非破壊検査，マイクロ波伝搬　　deformation detection，metallic tube，non-destructive inspection (NDI)，microwave propagation

要約(英語): Metallic tubes used in factories and industrial plants may be deformed as a result of long term use and other natural causes. Thus far, various non-destructive inspection (NDI) methods have been proposed to prevent accidents caused by deformation. However, the drawback of these conventional methods is that they take a longer time for very long tubes. In this paper, we propose a new detection method using electromagnetic wave propagation. In this method, metallic tubes are regarded as waveguides and we can determine the existence of deformations by propagating electromagnetic waves. To verify this method, we performed numerical experiments to estimate by propagation mode in a circular waveguide and to detect a deformation by the fluctuation in the reflection coefficient. After that, we performed measuments to verify the validity of the numerical experiments. We found that the proposed method is effective for detecting a deformation and for estimating its location and angle.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.133 No.9 （2013）

本誌掲載ページ: 868-875 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejias/133/9/133_868/_article/-char/ja/