Thermal imaging shows what the human eye can't see.
Thermography is the use of an infrared imaging and measurement camera to 'see' and 'measure' thermal energy emitted from an object.
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 visible light, in the infrared world, everything with a temperature above absolute zero or -273°C emits heat. Every object – both living and inanimate – emits infrared radiation (IR) as long as its temperature is above absolute zero. Even very cold objects, like ice cubes, emit infrared. The higher the object's temperature, the greater the IR radiation emitted. Infrared cameras allow us to see what our eyes cannot.
Infrared cameras produce images of invisible infrared or 'heat' radiation and provide precise non-contact temperature measurement capabilities. Nearly everything gets hot before it fails, making infrared cameras extremely cost-effective, valuable diagnostic tools in many diverse applications. And as industry strives to improve manufacturing efficiencies, manage energy, improve product quality, and enhance worker safety, new applications for infrared cameras continually emerge, including other NDT applications such as e.g. our Billet InspectIR™ high-speed billet testing system for the detection of open to surface defects on round and square steel billets.
We make heat 'visible'...