建造物等に由来する勾配磁場外乱を対象とする大規模・高自由度な磁場補正手法の提案

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: 2023/03/01

タイトル(英語): A Novel Method Applicable to Large-Scale Active Magnetic Shielding System which Effectively Compensates Gradient Magnetic Fields Originated from the Surrounding Buildings

著者名: 緒方　拓斗（(国研)宇宙航空研究開発機構），村田　直史（(国研)宇宙航空研究開発機構），清水　隆文（(国研)宇宙航空研究開発機構）

著者名(英語): Takuto Ogata (Japan Aerospace Exploration Agency), Naofumi Murata (Japan Aerospace Exploration Agency), Takafumi Shimizu (Japan Aerospace Exploration Agency)

キーワード: アクティブ磁気シールド，勾配磁場，磁場補正，磁場均一度_x000D_　　active magnetic shielding，gradient magnetic field，magnetic field compensation，magnetic field uniformity

要約(英語): We propose the novel magnetic compensation method which is suitable to compensate gradient magnetic fields. The method is to be applied to a conventional large-scale, tri-axial active magnetic shielding system such as spacecraft magnetic testing facility. The essences of this method are adoption of compensation coils which have degrees of freedom in their coil orientations, and their installation position, which is chosen to have certain distances from the center of the shielding area. The method works with at least 4 compensation coils. In this research, we actually demonstrated the method with scaled-down experiment. Disturbance magnetic field (B) at the target zone was suppressed from 21.33nT to -1.54nT and magnetic field uniformity (ΔB) within the test zone was improved from 2.3nT to 0.015nT. In terms of magnetic field gradient, improvement from over 4nT/m to below 0.5 nT/m was achieved.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.143 No.3 （2023）

本誌掲載ページ: 67-75 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/143/3/143_67/_article/-char/ja/