Title :
Open-Type Magnetic Shield Structure and its Performance
Author :
Fujikura, Masahiro ; Segawa, Kazuyoshi ; Chikuma, Kentaro ; Fujisaki, Keisuke ; Mino, Jiro ; Morita, Toshihito ; Saito, Takeshi ; Hirano, Hiroyuki ; Shinnoh, Toshifumi
Author_Institution :
Nippon Steel Corp., Futtsu
Abstract :
We propose a new type of magnetic shield structure, in which some closed magnetic paths surround a defined space. Because there are some openings between paths, the freedom in designing and the ease of constructing a shield room are attained. This structure shows better magnetic shield performance than conventional shield structures when openings between magnetic paths, widths of magnetic paths, and weight distribution of magnetic materials are designed appropriately.
Keywords :
magnetic noise; magnetic permeability; magnetic shielding; magnetisation; sheet materials; soft magnetic materials; steel; FeCJk; electrical steels; magnetic noise; magnetic paths; open-type magnetic shield structure; permeability; saturation magnetization; shield room; soft magnetic material weight distribution; Electrical steels; magnetic noise; permeability; saturation magnetization; shield coefficient; shield efficiency; soft magnetic materials;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2008.2002376
