What is the function of a shielded room

With the continuous development of society, shielded rooms are widely used in various industries. Shielded rooms also play a very important role in the security industry. Some people may only see shielded rooms as cabinets for installing IT equipment, but the role of shielded rooms is not just that of cabinets. So what is the function of a shielded room?
The main function of a shielded room is:
1. A shielded room is mainly used to block external electromagnetic interference and internal equipment generated electromagnetic waves, forming an equipotential body that can effectively shield electromagnetic interference. For example, in thunderstorm weather, a shielded room can prevent our electronic devices from being affected by lightning, which may cause the devices to malfunction or malfunction.
2. In various government departments, enterprises and institutions, especially those involving classified information, there is an increasing emphasis on the security of computer systems. To avoid information leakage or system interference, shielded rooms are established to prevent information leakage and ensure information security.
The main function of a shielded room is:
1. Alternating electromagnetic field shielding:
The shielding of alternating electromagnetic fields usually involves grounding the shielding body and using materials with high conductivity as the shielding body. It applies a shielding body to generate an eddy current magnetic field in the opposite direction under the action of a high-frequency magnetic field, which cancels out the original magnetic field and weakens the interference of the high-frequency magnetic field. It also completes electric field shielding due to the grounding of the shielding body.
2. Alternating electric field shielding:
The magnitude of the coupling interference voltage of an alternating electric field on a sensitive circuit depends on the product of the alternating electric field voltage, coupling capacitance, and the grounding resistance of the metal shielding body. Electric field shielding is mainly based on reflection, so the thickness of the shielding body does not need to be too large, and the main consideration factor is the structural strength. Just try to ground the metal shield well, and the coupling interference voltage of the alternating electric field on the sensitive circuit can be minimized. The role of shielding the computer room is still very important. There is a computer center, and most of it has a shielded computer room. Shielding computer rooms are also essential in the electronics industry. With the development of various industries, the performance of shielding computer rooms is becoming stronger and stronger.