非磁気シールド対応100 kHz光ポンピング原子磁力計モジュール開発

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2021/04/01

タイトル(英語): Development of 100 kHz Optical Pumped Atomic Magnetometer Module for Non-Magnetic Shield

著者名: 武田　俊（北里大学大学院医療系研究科），熊谷　寛（北里大学大学院医療系研究科），根武谷　吾（POSH WELLNESS LABORATORY（株））

著者名(英語): Shun Takeda (Graduate School of Medical Science, Kitasato University), Hiroshi Kumagai (Graduate School of Medical Science, Kitasato University), Satoru Nebuya (POSH WELLNESS LABORATORY Inc.)

キーワード: 生体磁気計測，光ポンピング原子磁気センサ，位相同期ループ　　bio-magnetism measurement，optically-pumped atomic magnetometer，phase-locked loop

要約(英語): In recent years, various sensors for biomagnetic measurement have been researched and developed. These are mainly for low frequency small signals such as magnetocardiography. Optical pumped atomic magnetometer (OPAM) would rather be applicable to this high frequency signal since there is a valid signal at higher frequencies. However, the highly sensitive OPAM uses a magnetic shield and an anti-vibration table, which makes the OPAM system larger. By packing the optical system in one case, you can develop an OPAM module that can measure even while moving. As a result, by using a phase-locked loop, we have achieved a sensitivity of 2.548 pT/Hz1/2 for a 100 kHz magnetic signal in the presence of a bias magnetic field and electromagnetic noise.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.141 No.4 （2021） 特集：量子・情報・エレクトロニクス医療インタフェース

本誌掲載ページ: 509-513 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/ieejeiss/141/4/141_509/_article/-char/ja/