Infrared Thermography & Thermal Images
Digital Infrared Thermal Imaging Technology
 Infrared thermography is the science of collecting and analyzing thermal data from non-contact thermal imaging devices.
Infrared radiation is electromagnetic radiation of a wavelength longer than that of visible light, but shorter than that of radio waves. (as per diagram below). The thermal imaging camera does not emit radiation of any kind, it only collects infrared radiation being naturally emmitted from the surface of objects scanned.
Thermography is the observation, measurement and recording of heat. All materials emit heat energy in the infrared portion of the electromagnetic spectrum; the quantity of infrared heat emitted is directly comparative to its temperature. The human eye cannot see in the infrared but by using Thermography and thermal images users can see thermally, observing anomalies that in turn identify problems. Modern infrared cameras view not only in real-time, but can also record infrared images and measure the temperatures of target objects quite accurately-to within 0.08°Centigrade or better. Generally areas for investigation are displayed as hot or cold in relation to their surroundings.
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