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The principle of multiple shielding of shielding box

Author:admin   AddTime:2021-04-25

Do you understand the principle of multiple shielding in shielding boxes? What is the principle of multiple shielding in shielding boxes? Today, the editor of shielding box manufacturers briefly introduces the principle of multiple shielding in shielding boxes.

The shielding box is a metal body made of various shapes of conductive or magnetic materials, which limits the electromagnetic ability to a certain space, and is used to suppress radiation interference. And deal with the conduction and radiation, so as to realize the equipment that provides a non-interference test environment for the wireless communication equipment under test.



The shielding layers cannot be connected together. They should be separated by air or filled with other media, otherwise the multi-layer shielding function will be lost, and the materials of the shielding bodies of each layer should not be the same. In addition to considering the permeability, the saturation level must also be considered. Sometimes due to the need to double or even more layers of electromagnetic shielding of the system/sub-system. The internal electromagnetic environment of some system equipment is very harsh, so that the requirements for the shielding effectiveness of the shell are also very high.

The biggest source of interference in general equipment is the oscillation circuit, which should be enclosed with an auxiliary sub-shield and then installed in the main shield of the system. There is only one necessary connection point between these sub-shields and the inner and outer shields of the main shielding box/other sub-shields, and other places must be separated and cannot be connected.

Absorbing Material:https://www.goodsmaterial.com/

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