IR Thermography – How It Works

Although infrared radiation (IR) is not detectable by the human eye, an IR camera can convert it to a visual image that depicts thermal variations across an object or scene. Thermography is a type of imaging that is accomplished with an IR camera calibrated to display temperature values across an object or scene, and allows for non-contact measurements of an object’s temperature. This article is part 1 of a handbook by FLIR that discusses how thermography works.