Search

This paper presents a NDT by a CO 2 Laser infrared thermography applied to defect detection in CFRP. The CO 2 Laser is an infrared laser with the wavelength of 10.6 μm. This excitation has a controllable heating beam by a geometric relation D = 0.01575· d , which allows to heat the samples at a specific position (placed at the distance “ d ”) and area (of a diameter “ D ”). The PPT interpretation principle was used to reduce the non-uniformity’s effect of the excitation causing inhomogeneous heat. The test with this excitation is much faster than the tests with conventional lock-in thermography method. [ABSTRACT FROM AUTHOR]