Journal of the Magnetics Society of Japan
Online ISSN : 1882-2932
Print ISSN : 1882-2924
ISSN-L : 1882-2924
Volume 40, Issue 6
Displaying 1-1 of 1 articles from this issue
Biomagnetism / Medical Applications
  • A. Mahgoub, I. Sasada
    2016 Volume 40 Issue 6 Pages 148-152
    Published: 2016
    Released on J-STAGE: November 01, 2016
    Advance online publication: October 13, 2016
    JOURNAL OPEN ACCESS

      A new method employing x-axis (horizontal) compensation system is introduced to reduce the magnetic noise measured in y-axis (vertical) in a separate shell magnetic shield. Due to the construction of the separate shell magnetic shield the x-axis incident magnetic field is redistributed generating a y-axis components affecting the operation of the sensors used in MCG measurements. The new method utilizes an active compensation system in x-direction to reduce both the gradient of magnetic field in y-direction and time varying magnetic noise generated in y-axis due to x-axis magnetic fields. Finally, a practical implementation of the adopted active compensation scheme is presented in order to reduce the cross effect from x-axis magnetic fields on y-axis.

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