Infrared Thermography and its Applications: A Review

Thermal imaging camera is a device which is used to detect infrared radiations emitted from an object to give a thermal profile of the scene. This device was initially used for surveillance purpose and as night vision camera. With the advancement in technology, there are significant additions to camera capabilities and prices has decreased. Therefore, infrared thermography (IRT) has grown to become very popular and widely accepted tool as it enables temperature measurement in real time. IRT is very convenient, fast, reliable, non-contact and cost-effective method which can be practiced for condition monitoring as well as for preventive and predictive maintenance in different areas such as electrical stations, buildings surveys, mechanical components and equipments. This survey presents a review of the advancement in IRT cameras and its applications in various fields. The basics of IRT and thermal radiation are discussed in details.