Select the Material for Shielding Box

Principles of selecting the shielding material for shielding box are:

1. if the external magnetic interference is too high, the attenuation shield will be reduced. This is because when the external magnetic field is too high, the magnetic material will be close to magnetic saturation.

2. In the usual case, using the thickness metallic material to produce the shield case is not realistic, because of its high cost.

3. To make the maximum attenuation of the external magnetic field, it is need to use a high permeability (μ) of the material.

4. The magnetic shield effect is the material thickness of the cover shield diameter (at the time of its diagonal rectangular shield) the ratio (t / D) function of shielding.

Based on the above principles of selection, high density tungsten alloy shielding box is the best choice for shielding materials.

 

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