広帯域インピーダンススペクトルのフーリエ解析によるケーブル劣化位置標定の可能性

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2012/02/01

タイトル(英語): Location Feasibility of Degradation in Cable through Fourier Transform Analysis of Broadband Impedance Spectra

著者名: 大木　義路（早稲田大学理工学術院），平井　直志（早稲田大学理工学術院理工学研究所）

著者名(英語): Yoshimichi Ohki (Faculty of Science and Engineering, Waseda University), Naoshi Hirai (Research Institute for Science and Engineering, Waseda University)

キーワード: 広帯域インピーダンス分光法，絶縁診断，フーリエ逆変換，酸化，ケーブル　　broadband impedance spectroscopy，insulation diagnosis，inverse Fourier transform，oxidation，cable

要約(英語): Since electric cables play important roles such as power supply and information transmission, their degradation may cause a serious problem. We have been trying to monitor the degradation of cable insulation by measuring the magnitude and phase angle of impedance as a function of frequency in a very wide frequency range. The cables tested were insulated with flame-retardant ethylene propylene rubber or special heat-resistant polyvinyl chloride. They were damaged partially by peeling off their insulation layers, or aged partially by heat and γ-rays. Impedance and phase angle were measured from a terminal of the cable. The difference in impedance between the damaged and sound cables becomes clear by fast Fourier transform analyses, from which the damaged portion can be located. It can be clearly shown that this method has a potential ability to detect the degradation of cable insulation induced by physical damage, γ-ray irradiation, and thermal aging.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.132 No.2 （2012） 特集：電気電子絶縁材料システムシンポジウム

本誌掲載ページ: 122-128 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/ieejfms/132/2/132_2_122/_article/-char/ja/