THERMAL IMAGING CAMERA
A Thermo graphic camera (or thermal imaging camera) is a device that forms an image using infrared radiation, similar to a common camera that forms an image using visible light. Thermographic cameras usually detect radiation in the Infrared range of the electromagnetic spectrum. Since infrared radiation is emitted by all objects with a temperature above absolute zero (-273.15⁰ C or 0⁰ K), thermography allows one to see the environment with or without visible light.
Why Is It Necessary?
When viewed through a thermographic camera, warm objects stands out well against cooler backgrounds. The amount of radiation emitted by an object increases with an increase in temperature, therefore, thermography allows one to see variation in temperature. Fire fighters use thermographic cameras to see through smoke, to find victims, and to localise the base of a fire. Maintenance technicians use thermographic cameras to locate overheating joints and sections of power lines, which are a sign of impending failure. Building construction technicians can see thermal signatures that indicate heat leaks in faulty thermal insulation and can use the results to improve the efficiency of heating and air-conditioning units.
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