HTS-SQUIDを用いたAC/DC複合型小型磁化率計

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: 2014/06/01

タイトル(英語): Compact AC/DC Susceptometer using a High-temperature Superconductor Superconducting Quantum Interference Device

著者名: 高木　竜輝（岡山大学大学院 自然科学研究科），Mohd Mawardi Saari（岡山大学大学院 自然科学研究科），堺　健司（岡山大学大学院 自然科学研究科），紀和　利彦（岡山大学大学院 自然科学研究科），塚田　啓二（岡山大学大学院 自然科学研究科）

著者名(英語): Ryuki Takagi (Graduate School of Natural Science and Technology, Okayama University), Mohd Mawardi Saari (Graduate School of Natural Science and Technology, Okayama University), Kenji Sakai (Graduate School of Natural Science and Technology, Okayama University), Toshihiko Kiwa (Graduate School of Natural Science and Technology, Okayama University), Keiji Tsukada (Graduate School of Natural Science and Technology, Okayama University)

キーワード: HTS-SQUID，磁化率計，非破壊検査，高調波検波　　HTS-SQUID，susceptometer，non-destructive evaluation，harmonics detection

要約(英語): We developed a compact susceptometer employing a high-temperature superconductor (HTS) superconducting quantum interference device (SQUID) that can measure M-H characteristics and harmonic components induced in the AC magnetic field response from a sample. In the DC function for measuring M-H characteristics, the sample was vibrated in the DC magnetic field, and the secondary magnetic field generated from the sample was detected by a DC pickup coil. In the AC function for measuring harmonic components, the sample is placed in the AC magnetic field, and the AC response was detected by an AC pickup coil. The pickup coil is connected in series with the input coil, which is inductively connected to the HTS-SQUID. Signal from the HTS-SQUID was transmitted to the lock-in amplifier, and was analyzed as the intensity and phase of the measured magnetic field. In order to clarify the basic properties of the system, we measured the AC magnetic field response from a sample in the case of changing the position between the sample and the pickup coil, and M-H characteristics when changing the DC bias magnetic field intensity. Furthermore, by analyzing the harmonic components of AC/DC magnetic field response, the system is able to measure the magnetic properties with high sensitivity and high speed.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.134 No.6 （2014）

本誌掲載ページ: 369-374 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/134/6/134_369/_article/-char/ja/