Monitoring of Industrial Equipment Using Thermography Technique in Passive and Active Form

This study aims to compare the advantages of infrared thermography (IRT) in passive and active use. The IRT is a non-contact, fast and wide-area of inspection nondestructive testing (NDT) technique that has been increasingly used in different fields to detect the presence of faults in assets. Indeed, the detection of faults in an early time allows the possibility to reduce the downtimes, thereby offering an important reduction of energy consumptions which ultimately leads to reduced cost. To achieve the object of this work, two experimental studies have been carried out using infrared thermography in passive and active form. The first experience is destined to the control of rotating machine damaged with unbalance using the passive IRT. In the last experiment the active IRT is carried out on a composite plate in order to reveal the presence of internal damage caused by a low velocity impact. The results obtained in this study show that the active thermography offers more details (localization and size of the defect) compared to the passive IRT.