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Crack Detection and Classification of Oak Lamellas Using On-Line and Ultrasound Excited Thermography
Jönköping University, School of Engineering.
Fraunhofer Institute for Wood Research, Wilhelm-Klauditz-Institut WKI.
Fraunhofer Institute for Wood Research, Wilhelm-Klauditz-Institut WKI.
Tarkett Eastern Europe, BU WOOD.
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2015 (English)In: Pro Ligno, ISSN 1841-4737, E-ISSN 2069-7430, Vol. 11, no 4, 464-470 p.Article in journal (Refereed) Published
Abstract [en]

On-line thermography and ultrasound-excited thermography have been evaluated for the detection of cracks in oak lamellae of flooring top layers. Image acquisition accompanied the tests and the objects were identified by post-processing and the evaluation of lamella images. The results were validated by comparing these findings with the actual state of the lamellae in terms of cracks and the classification accuracy of the method was calculated. The classification accuracy of the ultrasound-excited thermography method was three times greater than that of on-line thermography. The main conclusion is that the ultrasound-excited thermography method is the more suitable for the detection of cracks and the classification of lamellae.

Place, publisher, year, edition, pages
2015. Vol. 11, no 4, 464-470 p.
National Category
Other Mechanical Engineering
Research subject
Wood Science and Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-15742Local ID: f4ac76e6-4788-43af-b837-50d62a246c5eOAI: oai:DiVA.org:ltu-15742DiVA: diva2:988717
Note

Validerad; 2016; Nivå 1; 20151222 (andbra)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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CiteExportLink to record
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