In nature, all objects with a temperature higher than absolute zero (-273.15°C) radiate infrared rays all the time. Together with visible light, ultraviolet light, X-rays, gamma rays, cosmic rays and radio waves, it forms a complete and continuous electromagnetic spectrum. Its wavelength is between 0.78μm and 1000μm, which is non-visible light with a longer wavelength than red light.
The physical essence of infrared radiation is thermal radiation. Infrared thermal imaging cameras can generate thermal images instead of light images. It can measure infrared energy and convert the data into corresponding temperature images. Infrared thermal imaging cameras convert infrared thermal radiation into corresponding electrical signals, and then undergo amplification and video processing to form video images that can be observed by the naked eye. In layman's terms, it turns invisible infrared radiation into a visible thermal image, and can reflect the temperature distribution of the target surface
The main function of the thermal imager is temperature measurement and night vision. With the characteristics of safe, intuitive and trial temperature measurement, its equipment (thermal imager) has a wide range of uses and can be used in various scenarios such as power testing, scientific research temperature measurement, medical treatment, steel metallurgy, HVAC testing, etc.