Title :
3-D modeling of thin conductive sheets for magnetic field shielding: calculations and measurements
Author :
Clairmont, B.A. ; Lordan, R.J.
Author_Institution :
Electr. Power Res. Inst., Lenox, MA, USA
fDate :
10/1/1999 12:00:00 AM
Abstract :
This paper presents a new technique for calculating the magnetic field shielding effectiveness of thin conductive sheets of materials. The sheets are modeled as meshes of passive shielding wire filaments. Using this technique, complex three dimensional sources and shield configurations can be easily modeled. A computer program was developed to perform the calculations, and a comprehensive set of experiments was performed to verify the technique. Calculations and measurements are compared in the paper. The calculation method provides a numerical and experimentally verified technique for evaluating the shielding effectiveness of thin conductive sheets for power system magnetic field shielding applications. A predictive method such as this is becoming increasingly important as conductive materials are increasingly becoming accepted as effective shielding materials
Keywords :
conductors (electric); magnetic shielding; 3-D modeling; computer program; conductive materials; ferromagnetic shielding; magnetic field shielding; meshes; passive shielding wire filaments; predictive method; shielding effectiveness calculation; thin conductive sheets; three dimensional sources; Conducting materials; Magnetic field measurement; Magnetic fields; Magnetic materials; Magnetic shielding; Power system measurements; Power system modeling; Sheet materials; Three dimensional displays; Wire;
Journal_Title :
Power Delivery, IEEE Transactions on