Title :
Method for evaluating shielding factor of magnetically shielded rooms taking account of eddy currents using exciting coil
Author :
Muramatsu, K. ; Gao, Y. ; Yoneyama, Y. ; Sakai, A. ; Yuuki, S. ; Kazami, K. ; Yamazaki, K. ; Shinnoh, T. ; Yamaguchi, T.
Author_Institution :
Saga Univ., Saga, Japan
Abstract :
The effects of coil size, distance, shape, and layer structure of magnetic shielded rooms on the estimation of shielding factor in the low-frequency region is investigated in this study using 3D magnetic field analysis. The 3D linear eddy current analysis is carried out by using ordinary A-Φ method (A: magnetic vector potential, Φ: electric scalar potential) with the first order brick edge finite elements.
Keywords :
eddy currents; finite element analysis; magnetic shielding; 3D linear eddy current analysis; 3D magnetic field analysis; electric scalar potential; exciting coil; first order brick edge finite elements; magnetic vector potential; magnetically shielded rooms; ordinary A-Φ method; shielding factor; Analytical models; Eddy currents; Estimation error; Magnetic flux; Magnetic noise; Magnetic shielding; Standards;
Conference_Titel :
Magnetics Conference (INTERMAG), 2015 IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7321-7
DOI :
10.1109/INTMAG.2015.7157214
