補助センサとSSS法を用いた平面型多チャネル光ポンピング磁気センサの環境磁気ノイズ低減に関する検討

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: 2021/08/01

タイトル(英語): Environmental Magnetic Noise Reduction of Flat Multichannel Optically Pumped Magnetometer with Signal Space Separation Method together with Auxiliary Sensors

著者名: 中山　貢（京都大学大学院工学研究科），伊藤　陽介（京都大学大学院工学研究科），小林　哲生（京都大学大学院工学研究科）

著者名(英語): Mitsugu Nakayama (Graduate School of Engineering, Kyoto University), Yosuke Ito (Graduate School of Engineering, Kyoto University), Tetsuo Kobayashi (Graduate School of Engineering, Kyoto University)

キーワード: 光ポンピング磁気センサ，生体磁気計測，信号空間分離法　　optically pumped magnetometers，biomagnetic measurement，signal space separation method

要約(英語): In this study, we carried out computer simulations to apply the SSS method to flat multi-channel OPMs with auxiliary sensors and examined the suppression effect of environmental magnetic noise. We assumed that auxiliary sensors are added so that the environmental magnetic noise can be effectively suppressed, and assessed the appropriate position of the sensors. When the auxiliary sensors were circularly aligned with a radius of 50 cm in the plane 40 cm or 30 cm above from the flat multi-channel OPMs with the origin of the SSS method at 10 cm above from the OPMs, the target signal was extracted as an internal component. In addition, in the case of these sensor arrangements, the S/N of 4.3 could be improved to 259.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.141 No.8 （2021） 特集：磁気センサの高機能とシステム化の新展開

本誌掲載ページ: 446-451 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/141/8/141_446/_article/-char/ja/