厚さ数十μmの絶縁材料中の空間電荷分布測定

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): Space Charge Distribution Measurement in Insulation Film with Thickness of Several Tens μm

著者名: 濱野　昭洋（東京都市大学），田中　康寛（東京都市大学），前野　恭（東京都市大学／情報通信研究機構）

著者名(英語): Akihiro Hamano (Tokyo City University), Yasuhiro Tanaka (Tokyo City University), Takashi Maeno (Tokyo City University/National Institute of Information and Communications Technology)

キーワード: 空間電荷，パルス静電応力法，ポリフッ化ビニリデン，ポーリング，低密度ポリエチレン　　space charge，pulsed electroacoustic technique，PVDF，poling，LDPE

要約(英語): Since electronic equipment is required to be smaller and lighter, an insulating material for such equipment is consequently required to be thinner. However, under a certain DC voltage, the electric field in it becomes relatively higher according to the insulating material becomes thinner. Therefore, the insulating performance under high electric field must be important in such thin films. On the other hand, it is said that a space charge accumulation in them under DC high electric field is important because sometimes an electrical breakdown occurs in them due to an enhancement of electric field induced by the accumulated space charge. To investigate the characteristics of the space charge accumulation in them, PEA (Pulsed Electroacoustic) method is usually used. However, a spatial resolution of ordinary PEA system is not enough to observe the space charge distribution in thin films with thickness of several tens μm. Therefore, a new measurement system with high positional resolution is developed by making a thin piezo-electric film that is used as a sensor for PEA system. The obtained resolution of the developed system is 4 μm, and it is used for a typical measurement in LDPE film with thickness of 40 μm.

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: 150-151 p

原稿種別: 研究開発レター／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/132/2/132_2_150/_article/-char/ja/