![]() This means that a circuit has been designed to incorporate the prevention of interference and disruption by having shielding in place. ![]() While EMI refers to the interference itself, EMC refers to the function performed by the shielding, which is electromagnetic compatibility. ![]() There is little difference, and the two terms tend to be used interchangeably. What is the difference between EMI and EMC shielding? A small amount of EMI can easily interrupt input and output data signals, so having the right protection in place is crucial to the smooth running of equipment. Motors, transformers and other devices which use a lot of power tend to produce significant magnetic fields.Įlectromagnetic interference refers to the effect that these fields can have on other devices nearby. Any electricity flowing into a conductor generates a magnetic field, the size and strength of which depends upon the level of power. Because environmental electromagnetic conditions are unpredictable by nature, having effective shielding in place removes this particular threat to your electronics.ĮMI stands for electromagnetic interference. Across medical, defence, broadcast and other industries, electromagnetic shielding (also referred to as EMC or EMI shielding) is used to give a device total protection from its outside environment and any potential interference that may affect its performance, which can be dangerous depending on the purpose of the equipment. As electronic systems become more sophisticated, they also become more sensitive to outside interference.
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