Electromagnetic radiation detectors are mainly used for radiation measurement of electrical appliances, high-voltage lines, base stations, etc. in life, which can effectively help people stay away from radiation sources and avoid radiation hazards!
Electromagnetic waves (also known as electromagnetic radiation) move in the form of waves in space by oscillating in-phase and mutually perpendicular electric and magnetic fields, and their propagation direction is perpendicular to the plane formed by the electric and magnetic fields, effectively transferring energy and momentum. Electromagnetic radiation can be classified by frequency, from low to high frequencies, including radio waves, microwaves, infrared, visible light, ultraviolet light, X-rays, and gamma rays, to name a few. The electromagnetic radiation that the human eye can receive has a wavelength of about 380 to 780 nanometers and is called visible light. As long as it is an object whose temperature is greater than absolute zero, it can emit electromagnetic radiation, but no object with a temperature equal to or lower than absolute zero has been found in the world as far as human beings know.
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