Figure 1 – Pulsed active infrared thermography (PAIRT).
Columbus OH, USA — This 1999 NDT Solution by Xavier Maldague, Electrical and Computing Engineering Department, Université Laval, Quebec City (Quebec), Canada, published and presented online by the American Society for Nondestructive Testing (ASNDT) shows how infrared thermography can be used to detect wall thinning in pipes.
The technique provides a qualitative alternative to commonly used techniques such as ultrasonics, X-ray, and inspection via borescope.
This technique has the advantages of being fast, safe, and nonintrusive.
The article shows how pulsed active infrared thermography works to detect the wall thinning on an elbow when the part is loaded with transient thermal gradients.
Quantitative results are presented correlating thickness to time at which abnormal thermal patterns appear.
Click on the link here www.asnt.org/publications/materialseval/solution/sep99solution/sep99sol.htm to see the full article on the ASNT website.
You must log in to post a comment.