IEC (International Electrotechnical Commission) defines electromagnetic compatibility as: the ability of an electronic device or system to function normally in its electromagnetic environment and not cause intolerable electromagnetic interference to other devices or systems in that environment.
Electromagnetic compatibility (EMC) is an important concept that relates to the performance and stability of electronic equipment or systems in an electromagnetic environment. Electromagnetic interference may cause a variety of problems to the equipment or system, including performance degradation, misoperation and even damage. The research and application areas of EMC are very wide, including the design, manufacture, use and management of electronic products. In order to ensure the electromagnetic compatibility of a device or system, a series of measures need to be taken, including electromagnetic shielding, filtering, grounding and so on.
Electromagnetic compatibility is also an important prerequisite for an electronic device or system to pass an electromagnetic compatibility test. Only through the electromagnetic compatibility test, in order to ensure that the performance and stability of the equipment or system in the electromagnetic environment to meet the requirements, so as to protect the normal operation and use of the equipment or system. Electromagnetic compatibility is an important attribute of electronic equipment or system, it is related to the performance and stability of the equipment or system, but also electronic equipment or system design and manufacture of an important factor to consider.
Electromagnetic compatibility applications:
1, communications equipment: in wireless communications and wired communications equipment, electromagnetic compatibility is very important. The equipment must be able to resist electromagnetic interference from other equipment or the environment without causing excessive interference to other equipment.
2, power system: the stable operation of the power system has high requirements for electromagnetic compatibility. Power equipment must be able to resist electromagnetic interference from the grid, while not generating excessive interference to the grid.
3. Transportation: Transportation vehicles such as airplanes, trains, and automobiles face a complex electromagnetic environment. Electromagnetic compatibility is one of the key factors to ensure the safe operation of these means of transportation.
4, medical equipment: medical equipment such as monitors, surgical instruments, etc., have high requirements for electromagnetic compatibility. These devices must be able to resist electromagnetic interference from other devices without causing harm to the patient.
5, the military field: military equipment such as radar, electronic warfare systems, etc., the electromagnetic compatibility has high requirements. These equipments must be able to work normally in the complex electromagnetic environment without causing interference to other equipments.