Magnet manufacturer introducing magnetic shielding need high permeability material
Magnet manufacturer introducing magnetic shielding need high permeability material general we use the ordinary iron plate shielding the magnetic field.
Magnetic shielding requires high permeability material, meet the requirements of the material is iron nickel alloy, this material has the very high magnetic permeability.
When you need to shield the magnetic field is very strong, only use single layer shielding materials, is not short of shielding requirements, will happen is saturated.
At this time, a method is to increase the thickness of the material.
But more effective method is to use a combination of shielding, a shield on another screen, leave any wind gap between them.
Inside the air gap can fill any non magnetic permeability material, such as aluminum.
Magnet manufacturer composite shielding shielding effectiveness than single shield is much higher, so composite shielding to magnetic field attenuation to very low levels.
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