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 bf B} \rm s method (the method of which the magnetic field bf 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 bf 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 bf B s method are better than those of the A method.
Original language | English |
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Article number | 6136786 |
Pages (from-to) | 179-182 |
Number of pages | 4 |
Journal | IEEE Transactions on Magnetics |
Volume | 48 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2012 Feb 1 |
Keywords
- Finite element method
- irrotational field component
- magnetic environment
- magnetic shielding
- measurement noise
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering