SHIELDING APPARATUS FOR MAGNETIC FIELD

摘要

The present invention relates to a magnetic field shielding apparatus which includes a first shielding material which is made of a first material with relative magnetic permeability over 1 and is arranged around a magnetic field source which generates a magnetic field or a magnetic field shielding object and a second shielding material which is made of a second material with the maximum magnetic permeability in magnetic field strength which is different from the first material. Wherein, the first and second shielding materials are alternatively arranged.