In nature, all objects with temperatures above absolute zero (-273.15°C) radiate infrared light every second of every day. It constitutes a complete and continuous electromagnetic spectrum together with visible light, ultraviolet light, X-rays, gamma lines, cosmic rays and radio waves. Its wavelength is between 0.78 μm and 1,000 μm, and it is a non-visible light with a wavelength longer than that of red light.
The physical nature of infrared radiation is thermal, and an infrared camera generates an image of heat rather than light; it measures infrared energy and converts the data into a corresponding temperature image. Infrared thermal imaging camera is the infrared thermal radiation into the corresponding electrical signals, and then after amplification and video processing, the formation of video images that can be observed by the naked eye. In layman's terms, it is the invisible infrared radiation into a visible thermal image, and can reflect the temperature distribution of the target surface state
The main role of the thermal imager is temperature measurement and night vision, with a safe, intuitive, try to measure the temperature of the characteristics of the device equipment (thermal imager) is widely used, can be used for electric power detection, scientific research temperature measurement, medical, Iron and steel metallurgy, HVAC detection and many other scenes.