Research Article

In Search of Early Time: An Original Approach in the Thermographic Identification of Thermophysical Properties and Defects

Figure 10

On the left: Influence of the normalized defect depth, , on the relative contrast generated by a defect of normalized thermal resistance in a slab of thickness . On the right: Comparison in the emerging contrast domain between the contrasts generated by the same defect in a semi-infinite medium (solution used for the depth and thermal resistance identification by the early detection technique) and in a slab of thickness .
(a) Sample finite thickness effect on the relative contrast
(b) Emerging contrast domain