Quantitative detection of subsurface defects by pulse-heating infrared thermography

Mingcheng Zong; Tieying Ding; Shuwen Xue; Huijun Tang; Theo H. van der Meer

doi:10.1117/12.318428

10 August 1998 Quantitative detection of subsurface defects by pulse-heating infrared thermography

Mingcheng Zong, Tieying Ding, Shuwen Xue, Huijun Tang, Theo H. van der Meer

Proceedings Volume 3558, Automated Optical Inspection for Industry: Theory, Technology, and Applications II; (1998) https://doi.org/10.1117/12.318428
Event: Photonics China '98, 1998, Beijing, China

Abstract

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.

Citation Download Citation

Mingcheng Zong, Tieying Ding, Shuwen Xue, Huijun Tang, and 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); https://doi.org/10.1117/12.318428

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