Laser spot thermography and Pulse thermography – comparison of performance for non-destructive testing of composite structures

Laser spot thermography (LST) is a sub-domain method in active thermography that uses a laser as the heat source. The method allows for precise control of the beam shape, pulse duration, and delivered energy. Therefore, this technique can be applied, especially for delicate structures where testing...

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Bibliographic Details
Published inThe international journal of multiphysics Vol. 17; no. 1; pp. 91 - 104
Main Authors B Hyla, M Sobczak, P Synaszko, J Roemer
Format Journal Article
LanguageEnglish
Published MULTIPHYSICS 01.01.2023
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Summary:Laser spot thermography (LST) is a sub-domain method in active thermography that uses a laser as the heat source. The method allows for precise control of the beam shape, pulse duration, and delivered energy. Therefore, this technique can be applied, especially for delicate structures where testing conditions must be maintained precisely. The following work includes the introduction of a laser spot thermography technology demonstrator that was designed and constructed at AGH UST. The paper presents laser thermography laboratory experiments along with the developed procedure for automatic defect identification. The measurements were used to establish an automatic procedure and algorithm for automatic defect identification based on regression methods.
ISSN:1750-9548
2048-3961
DOI:10.21152/1750-9548.17.1.91