Since Herschel discovered the infrared ray in the solar spectrum in 1800, the blackened mercury thermometer was the earliest infrared explorer. With the development of infrared experiment and theory, new equipment has been emerging. The preparation of infrared Explorer involves many subjects, such as physics, materials, chemistry, mechanics, microelectronics, computer and so on.
Because of its unique advantages, infrared exploration technology has been widely studied and used in military defense and civil fields, especially in the traction of military field demand and the promotion of related skills development, as a high-tech infrared exploration technology will be more widely used in the future, and its position will be more important.
The infrared detector works by detecting the infrared emitted by the human body. The Explorer collects the infrared radiation from the outside and gathers it on the infrared sensor. Pyroelectric element is usually used in infrared sensor. When the temperature is announced to change after receiving infrared radiation, the pyroelectric element will release electric charge and alarm after detection and processing.
The infrared detector is a kind of equipment which transforms the infrared radiation signal into electrical signal output. Infrared radiation is an electromagnetic wave whose wavelength is between visible light and microwave, which can not be detected by human eyes. To detect the existence of this radiation and measure its strength, it must be transformed into other physical quantities that can be detected and measured. Generally speaking, infrared radiation
Any effect caused by irradiating an object can be measured only by the action and is flexible enough to measure the intensity of infrared radiation. Modern infrared explorers mainly use infrared thermal effect and photoelectric effect. The output of these effects is mostly electricity, which may be converted into electricity by appropriate methods.
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