Compound configuration and shielding effects of low frequency magnetic shielding material

everal magnetic shielding materials with compound configuration were designed.The shielding effects of them for low frequency magnetic field between 10 and 100 kHz were investigated.The results show that the shielding effects mainly depend on permeability and conductivity of the material.The shielding effects increase with the frequency of magnetic field increasing.The thin shielding material with appropriate compound configuration shows better magnetic shielding effects at different frequency.