The common types of electromagnetic radiation sources in life mainly include the following
Radio and television transmitting equipment, mainly radio and television transmitters and relay stations around the world.
2. Communication radar and navigation communication transmitting equipment, including short-wave transmitting stations, microwave communication stations, terrestrial satellite communication stations, mobile communication stations.
3. Industrial, scientific research, medical high-frequency equipment. This type of equipment to convert electrical energy into heat or other energy to be utilized, but accompanied by electromagnetic radiation generated and leaked out, causing environmental pollution in the workplace.
Industrial electromagnetic radiation equipment: mainly for high-frequency furnace, plastic heat sealing machine, high-frequency media heating machine.
Medical electromagnetic radiation equipment: mainly for high-frequency physiotherapy machine, ultra-short-wave physiotherapy machine, ultraviolet radiation physiotherapy machine.
Scientific research electromagnetic radiation equipment: mainly for the electronic gas pedal and a variety of ultrasonic devices, electromagnetic cooker.
4.
Electromagnetic radiation equipment for transportation systems, including: electrified railroads, light rail and electrified railroad, streetcars, trolley buses and so on.
5. Electromagnetic radiation equipment for power systems, high-voltage transmission lines including overhead transmission lines and underground cables, substations including power plants and transformer power stations.
6. Household appliances electromagnetic radiation equipment, including computers, monitors, televisions, microwave ovens, wireless phones and so on.