Title :
Material efficiency in magnetic shielding at low and intermediate frequency
Author :
Adriano, Ugo ; Bottauscio, Oriano ; Zucca, Mauro
Author_Institution :
Inst. Elettrotecnico Nazionale Galileo Ferraris, Torino, Italy
Abstract :
The efficiency of conductive and magnetic screens is analyzed in the large scale shielding of environmental magnetic fields up to 20 kHz. Several geometrical configurations of the shields and the field sources are reproduced in laboratory in order to analyze in a systematic way the mitigation properties. The problem is also faced by a numerical model, based on a hybrid FEM-BEM approach.
Keywords :
boundary-elements methods; electromagnetic fields; finite element analysis; magnetic shielding; environmental EM fields; field sources; geometrical configurations; grain-oriented laminations; hybrid FEM-BEM approach; intermediate frequency; large scale shielding; low carbon steels; low frequency; low-cost conductive shields; low-cost magnetic shielding; material efficiency; mitigation properties; numerical model; Coils; Frequency; Lamination; Large-scale systems; Magnetic analysis; Magnetic field measurement; Magnetic materials; Magnetic shielding; Permeability; Soft magnetic materials;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2003.816235
