Experimental study of the active compensation to a full-size separate-shell magnetic shield

Yoshihiro Nakashima, Yusuke Suzuki, Ichiro Sasada, Masaki Shimada, Toshikazu Takeda

研究成果: ジャーナルへの寄稿記事

7 引用 (Scopus)

抄録

Shielding efficiency of a full-size separate-shell magnetic shield equipped with active compensation coils is presented. Its size is 135 cm in height, 100 cm in width, and 240 cm in depth. With respect to active compensation two control schemes, i.e., feedback and feedforward, are compared. The shielding efficiency is estimated from the measurements of the attenuation of environmental magnetic fields in two axial directions (horizontal and vertical). In the case of feedback, a reference sensor that measures the incoming magnetic fields is positioned inside the shield, whereas in the case of feedforward the reference sensor is positioned outside the shell. In both axial directions, the environmental magnetic noise can be reduced to less than 500 pT: the noise floor measured by a fluxgate magnetometer is approximately 10 pT/Hz in the frequency range from 10 to 100 Hz.

元の言語英語
記事番号5467524
ページ(範囲)2318-2321
ページ数4
ジャーナルIEEE Transactions on Magnetics
46
発行部数6
DOI
出版物ステータス出版済み - 6 1 2010

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Shielding
Magnetic fields
Feedback
Sensors
Magnetometers
Direction compound
Compensation and Redress

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

これを引用

Experimental study of the active compensation to a full-size separate-shell magnetic shield. / Nakashima, Yoshihiro; Suzuki, Yusuke; Sasada, Ichiro; Shimada, Masaki; Takeda, Toshikazu.

:: IEEE Transactions on Magnetics, 巻 46, 番号 6, 5467524, 01.06.2010, p. 2318-2321.

研究成果: ジャーナルへの寄稿記事

Nakashima, Y, Suzuki, Y, Sasada, I, Shimada, M & Takeda, T 2010, 'Experimental study of the active compensation to a full-size separate-shell magnetic shield', IEEE Transactions on Magnetics, 巻. 46, 番号 6, 5467524, pp. 2318-2321. https://doi.org/10.1109/TMAG.2010.2040469
Nakashima, Yoshihiro ; Suzuki, Yusuke ; Sasada, Ichiro ; Shimada, Masaki ; Takeda, Toshikazu. / Experimental study of the active compensation to a full-size separate-shell magnetic shield. :: IEEE Transactions on Magnetics. 2010 ; 巻 46, 番号 6. pp. 2318-2321.
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