Static shielding four situations illustrated answers are as follows:
1. Shielding of electromagnetic radiation:
In this case, we need to minimize the interference of electromagnetic radiation, to protect the normal operation of electronic equipment. First, we can use a metal shielding box and put the electronic equipment into it. The conductive properties of the metal box can effectively shield electromagnetic radiation. In addition, we can also add metal shielding to signal lines, power lines and other lines that transmit signals to reduce the interference effect of electromagnetic radiation.
2. Shielding of external electromagnetic fields:
In this case, we need to minimize the interference of external electromagnetic fields to ensure the normal operation of electronic equipment. First, we can set up a metal shielding network around the equipment to direct the external electromagnetic fields to the metal shielding network, thus reducing the interference with the internal equipment. In addition, a metal shielding cover can be used to wrap the equipment to further improve the shielding effect.
3. Shielding against electrostatic interference:
The impact of electrostatic interference on electronic equipment is very serious, and can lead to equipment damage or abnormal operation. In order to shield static interference, we can apply conductive materials, such as conductive paint, to the surface of the equipment. Conductive paint has good conductive properties, which can effectively disperse and eliminate static charges. In addition, electrostatic conductive materials, such as metal grounding nets, can be set up around the equipment to direct the electrostatic charge into the ground.
4. Shielding electromagnetic wave situation:
In this case, we need to reduce the transmission of electromagnetic waves and interference effects. First, we can use metal shielding material, such as aluminum foil, to wrap the area to be shielded. The metal shielding material can reflect and absorb electromagnetic waves, thus reducing their transmission and interference effects. In addition, a metal shielding wall can be installed around the area to be shielded to further improve the shielding effect.
Through the above four cases of electrostatic shielding illustration, we can clearly understand the principle and method of electrostatic shielding in different situations. Electrostatic shielding is an important means to protect the normal operation of electronic equipment, it can effectively reduce electromagnetic radiation, external electromagnetic fields, electrostatic interference and electromagnetic wave interference. Through appropriate shielding methods, we can ensure the stability and reliability of the equipment.