Title :
The effectiveness of current-comparator magnetic shields against leakage fields at power frequencies
Author_Institution :
Instituto Nacional de Metrologia, Rio de Janeiro, Brazil
Abstract :
A magnetostatic approach is used to identify the relevant parameters for current-comparator magnetic shielding design and to derive simple expressions for the shielding effectiveness against leakage fields generated by ratio windings.
Keywords :
calibration; current comparators; leakage currents; magnetic circuits; magnetic shielding; magnetostatics; current-comparator magnetic shields; leakage fields; magnetic error; magnetic-circuit approach; magnetostatic approach; power frequencies; ratio windings; shielding effectiveness; Boundary conditions; Frequency; Laplace equations; Leak detection; Magnetic cores; Magnetic shielding; Magnetostatic waves; Permeability; Region 1; Toroidal magnetic fields;
Conference_Titel :
Precision Electromagnetic Measurements, 2002. Conference Digest 2002 Conference on
Conference_Location :
Ottawa, Ontario, Canada
Print_ISBN :
0-7803-7242-5
DOI :
10.1109/CPEM.2002.1034706
