Shielding Effectiveness of Shields and Their Combined Double-layer Shields for Low Frequency Pulsed Magnetic Field

With the large-scale solenoid magnetic field generating device(LSMGD) and the test piece method, this paper studies the shielding effectiveness(SE) and its change law of the shields and their combined double-layer shields made of cold-rolled steel sheet(CS), galvanized iron sheet(GI) and aluminum plate(AL) for the low frequency pulsed magnetic field through the effect test. The research results can provide guidance for low frequency pulsed magnetic field protection and material selection, and can make up for the deficiency of current research[1], [2], and[3].