Thermography is the use of an infrared imaging and measurementcamera to see and measure thermal energy emitted from an object.Thermal, or infrared, energy is light that is not visible becauseits wavelength is too long to be detected by the human eye; it'sthe part of the electromagnetic spectrum that is perceived asheat.
Almost all materials on earth emit heat energy in the infraredportion of the spectrum. Unfortunately, the unaided human eyecannot see in the infrared. Infrared images allow the camera userto see thermally, revealing temperature anomalies that in turnidentify potential problems in buildings and their componentelectrical, mechanical, plumbing, and waterproofing systems.
Unlike visible light, in the infrared world, everything with atemperature above absolute zero emits heat. Even very cold objects,like ice cubes, emit infrared. The higher the object's temperature,the greater the infrared radiation emitted.
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