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Proceedings of the 2012 International Conference on Quantitative InfraRed Thermography
An active thermographic imaging system was constructed, in which a cooling material contacts the surface and scans over a welded zone of two stainless plates. Both a time-varying thermographic image and a real-time response of each pixel were recorded. A thermal image showed that the heat flow from the welded zone toward the cooling material apparently forms an isolated high-temperature region which indicates the existence of a subsurface simulated welding defect. This method is a simple, easydoi:10.21611/qirt.2012.339 fatcat:3g3idb4bpvbenc6trnt2dtkasy