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The difference between absorbing material and shielding materials in where?

Author:admin   AddTime:2021-02-01

Absorbing material and shielding materials is one of the commonly used two kinds of electronic materials, due to its working principle, therefore, also has the very big difference in terms of scope, this paper first introduces through the principle of absorbing material and shielding material difference:
One, absorbing material
Absorbing material refers to the electromagnetic wave absorbing onto its surface energy of materials. It through the materials of all sorts of different loss mechanism will incident electromagnetic wave is converted into heat energy or other form of energy absorption of electromagnetic wave and to achieve. On the engineering application, in addition to the requirements within a broad band of the electromagnetic wave absorbing material with high absorption rate, also requires that it has the advantage of light quality, heat resistance, moisture resistance, corrosion performance, etc. Absorbing effect of absorbing material is determined by medium internal various electromagnetic mechanisms, such as the debye dielectric relaxation, resonance absorption, interface magnetic dielectric relaxation of domain wall resonance relaxation and electronic diffusion and micro eddy current, etc.

Second, the shielding materials

Shielding materials is to metal between two space area of isolation, to control the electric field, magnetic field and electromagnetic waves from one area to another area of the induction and radiation type of material. Specifically is used in the manufacture of shield material. Shield components, circuit, assembly, cable, or the interference sources of the whole system surrounded by preventing interference of electromagnetic field to spread beyond; With a shield to enclose the receiving circuit, equipment or system, prevent them from affected by external electromagnetic fields.

tage:Absorbing material     Shielding material 


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