NDLI: Study of Numerical Method for Magnetic Shielding Problem Considering Actual Measurement of Magnetic Environment

Content Provider	IEEE Xplore Digital Library
Author	Ujigawa, S. Shinnoh, T. Takahashi, N. Miyagi, D.
Copyright Year	1965
Abstract	A critical consideration in the optimal design of magnetically shielded rooms is the manner in which an external magnetic field, which should be shielded, is imposed on a target area. In this paper, we examined the possibility of applying the B_s method (the method of which the magnetic field B_s in the analyzed region is given) to the shielding problem with a measurement-based magnetic field, which includes an irrotational field component as noise, and, therefore, is inconsistent with Maxwell's equations. We show that the B_s method has a well-defined physical meaning for such an irrotational field component. Furthermore, we explain why the convergence and the accuracy of the B_s method are better than those of the A method.
Sponsorship	IEEE Magnetics Society
Starting Page	179
Ending Page	182
Page Count	4
File Size	300332
File Format	PDF
ISSN	00189464
Volume Number	48
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-02-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic shielding Magnetic noise Convergence Noise Vectors Magnetic analysis Mathematical model measurement noise Finite element method irrotational field component magnetic environment magnetic shielding
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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