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Thermography means “writing with heat”, just like photography means “writing with light”. The picture that is generated is called a thermogram or thermal image. Thermal, or infrared energy is light that is not visible because its wavelength is too long to be detected by the human eye; it's the part of the electromagnetic spectrum that we perceive as heat. Unlike invisible light, in the infrared world, everything with a temperature above absolute zero gives of heat. Even very cold objects, like ice cubes. Infrared allows us to see what our eyes cannot. Infrared cameras produce images of invisible heat radiation and provide precise on-contact temperature measurement capabilities. Nearly everything gets hot before it breaks down.
Applications for thermography technology in the commercial and domestic fields are many - from monitoring your electrical and mechanical systems to tracking energy efficiency by seeing where all your heating and cooling dollars are going.
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