10 August 1998 Quantitative detection of subsurface defects by pulse-heating infrared thermography
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The principles and methods are introduced to quantitatively detect the subsurface defect depth and size by pulse-heating IR thermography. The subsurface defects in different metal and insulating materials were quantitatively measured by using our home-made pulse-heating IR thermography non- destructive testing system. From our experimental results, it is shown that accurate information can be obtained during a shortly time after the surface of a target is heated by a thermal pulse. Especially for metals a fast recording of the images is required.
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Mingcheng Zong, Mingcheng Zong, Tieying Ding, Tieying Ding, Shuwen Xue, Shuwen Xue, Huijun Tang, Huijun Tang, Theo H. van der Meer, Theo H. van der Meer, "Quantitative detection of subsurface defects by pulse-heating infrared thermography", Proc. SPIE 3558, Automated Optical Inspection for Industry: Theory, Technology, and Applications II, (10 August 1998); doi: 10.1117/12.318428; https://doi.org/10.1117/12.318428

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