宇宙環境模擬下における絶縁材料の体積抵抗率計測について

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: 2012/01/01

タイトル(英語): Volume Resistivity Measurement of Insulating Material in Space Environment Simulated Condition

著者名: 渡邉　力夫（東京都市大学 工学部），三宅　弘晃（東京都市大学 工学部），田中　康寛（東京都市大学 工学部），仁田　工美（宇宙航空研究開発機構 研究開発本部）

著者名(英語): Rikio Watanabe (Faculty of Engineering, Tokyo City University), Hiroaki Miyake (Faculty of Engineering, Tokyo City University), Yasuhiro Tanaka (Faculty of Engineering, Tokyo City University), Kumi Nitta (Japan Aerospace Exploration Agency)

キーワード: 宇宙機帯電，体積抵抗率，電荷蓄積法　　spacecraft charging，volume resistivity，charge storage method

要約(英語): Volume resistivities of polyimide film under simulated space environment are measured with "charge storage decay method." The test material was irradiated by electron beam in a vacuum chamber to simulate space environment. Volume resistivity is calculated from the surface potential decay time constant after stopping electron irradiation. This is called "charge storage decay method" and is shown to be the preferred method to determine resistivities of highly insulating materials. As a result of experiments, we have found that volume resistivity of polyimide film is in order of 1016 Ωm, which is one order higher than the result from the conventional resistivity measurement method prescribed in JIS or ASTM. Higher resistivity requires much longer field relaxation time after injection of electron to dissipate through the material. Thus, charging analysis of spacecraft needs to consider this higher resistivity. The effect of injection energy of electron is also examined and it is found that the higher the energy is, the faster the charge decay become.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.132 No.1 （2012） 特集：2012年研究開発の動向と最前線

本誌掲載ページ: 88-94 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/132/1/132_1_88/_article/-char/ja/