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When the sun goes down and the other sources of illumination are removed, there is no light to be reflected and most mammals, especially, cannot see anything. The unaided human eye cannot see infrared radiation, but the radiation is always present. It is heat or thermal radiation in a portion of the Electromagnetic (EM) spectrum to which our eyes do not respond. Our bodies respond to infrared, if it is intense enough, by feeling warmed, or sometimes, cooled.

The IR or infrared portion occupies roughly the region between 10 to the minus 4 to 10 to the minus 3 centimeters, or, from about 1 micron to about 100 microns.
Every object at temperatures above Absolute Zero ( 0 K or -273.15 °C) emits thermal radiation, much in the infrared portion of the EM spectrum. Many objects that are very hot emit thermal radiation that is in the visible and even the ultraviolet portion of the EM spectrum as well as the infrared, e.g. an incandescent light bulb or our local star that we call the Sun.


Thermography can be applied in to “anything a temperature difference can be associated with”. Thermography testing is used on Mechanical Inspection for Steam Systems such as Boilers, Tubes, Refractory, traps, lines and for Rotating Equipments such as Bearings, Dryer Drums, Turbines, Pumps, Couplings and for Furances. Also it is used for Electrical Panel inspections, Building roof inspections and Building Inspections.

Primary Advantages

Advantage of Thermography includes that is used portable equipment, applied to scan the equipment while it is operations and result can be evaluated easily.




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