What is EMI
EMI is the abbreviation of ElectroMagnetic Interference, which is a compound word, we should consider “electromagnetic” and “interference” separately.
The so-called “interference” refers to the two-layer meaning that the performance of the equipment is reduced after interference and the interference source that interferes with the equipment.
The first layer of meanings such as thunder and lightning makes the radio produce noise, the motorcycle screen is driving around, snowflakes appear on the TV screen, and the radio sound is heard after picking up the phone. These can be referred to as “BC I” “TV I” “Tel I” ,
These abbreviations have the same “I” (interference) (BC: radio, TV: TV, Tel: telephone) followed by “electromagnetic”. If the charge is static, it is called static electricity. When different potentials move in unison, an electrostatic discharge occurs, generating a current, and a magnetic field is generated around the current. If the direction and magnitude of the current continue to change continuously, electromagnetic waves are generated. Electricity exists in various states, we collectively call these states electromagnetic