Title :
Evaluation of different analytical and semi-analytical methods for the design of ELF magnetic field shields
Author :
Canova, Aldo ; Manzin, Alessandra ; Tartaglia, Michele
Author_Institution :
Dipt. di Ingegneria Elettrica Industriale, Politecnico di Torino, Italy
Abstract :
The aim of this paper is the evaluation of different analytical methods devoted to the study of shielding of extremely low-frequency magnetic fields with conducting and ferromagnetic materials. In this paper, an extensive analysis of some approaches is presented, by comparing these methods to a numerical one based on a hybrid finite-element method/boundary-element method formulation. The study wants to underline the accuracy of the different techniques, evaluating their limits of validity, depending on physical and geometrical shield parameters
Keywords :
boundary-elements methods; conducting materials; ferromagnetic materials; finite element analysis; magnetic shielding; E.LF magnetic field shields design; analytical methods; conducting materials; ferromagnetic materials; hybrid finite-element method/boundary-element method; low-frequency magnetic fields; multiconductor model; semi-analytical methods; Design methodology; Electromagnetic fields; Finite element methods; Geophysical measurement techniques; Ground penetrating radar; Magnetic analysis; Magnetic fields; Magnetic flux; Magnetic materials; Magnetic shielding;
Journal_Title :
Industry Applications, IEEE Transactions on
DOI :
10.1109/TIA.2002.1003431
