Advanced Ndt Services

Infrared Thermography

Definition of Infrared Thermography

Infrared thermography is equipment or method, which detects infrared energy emitted from object, converts it to temperature, and displays image of temperature distribution. To be accurate, the equipment and the method should be called differently, the equipment to be called as infrared thermograph and the method to be called as infrared thermography. Recently, however, more and more public literatures show tendency not to pay attention to such appellative. We call our equipment as infrared thermography considering such generalization of the terminology.

Characteristics of Infrared Thermography equipment

  • It captures as a temperature distribution on a surface,and it can display as a visible information.
  • Temperature can be measured from a distance without contacting an object.
  • Temperature can be measured in real time.


  • It shows a visual picture so temperatures over a large area can be compared.
  • It is capable of catching moving targets in real time.
  • It is able to find deteriorating, i.e., higher temperature components prior to their failure.
  • It can be used to measure or observe in areas inaccessible or hazardous for other methods.
  • It is a non-destructive test method.
  • It can be used to find defects in shafts, pipes, and other metal or plastic parts.
  • It can be used to detect objects in dark areas.