Author(s)

Chen Wei

Corresponding Author

Chen Wei

ABSTRACT

Computers' electromagnetic compatibility and information security are problems that need to be solved urgently at present. However, there are few studies on computer's electromagnetic compatibility, especially leak prevention in China. The development of high performance electric heating electromagnetic shielding glass is mainly to make the screen not only prevent electromagnetic wave from radiating out, but also prevent frosting and fogging, and make the LCD screen work normally at low temperature. The effect of shield thickness on magnetic shielding effectiveness of constant magnetic field is studied by using high permeability metal iron. It is found that the shield thickness increases and its shielding performance increases. Based on the theory of electromagnetic radiation, the electromagnetic radiation of various parts of the computer system is analyzed in detail, and the possibility of leakage of electromagnetic information is obtained. Comprehensively utilizing the electromagnetic shielding characteristics of high magnetic permeability materials, high conductivity materials and high temperature superconducting materials, selecting the optimal electromagnetic shielding scheme to serve the social life and national economy, has important theoretical and practical significance for solving electromagnetic compatibility problems.

KEYWORDS

Electromagnetic shielding, Magnetic shielding materials, Information security