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Analysis method for pulsed thermography based on an analytical solution of the heat equation
University West, Department of Engineering Science, Division of Automation Systems. (PTW)ORCID iD: 0000-0001-7748-0565
2014 (English)Article in journal (Refereed) Submitted
Abstract [en]

An analytical solution to the heat equation is presented, using a simplified physical model of pulsed thermography. This solution was compared to experimental data and showed good correlation, with r=0.97. An analysis method for sizing and determining the depth of a defect was developed using this analytical solution. The shape of the defect was estimated using deconvolution. Results from thermography tests on flat bottom holes show the possibilities of the method to determine the size, shape and depth of the defect, if the physical properties of the material are known.

Place, publisher, year, edition, pages
2014.
Keywords [en]
Pulsed thermography; defect shape reconstruction; analytic solution; deconvolution
National Category
Mechanical Engineering
Research subject
ENGINEERING, Manufacturing and materials engineering
Identifiers
URN: urn:nbn:se:hv:diva-6694OAI: oai:DiVA.org:hv-6694DiVA, id: diva2:747552
Note

Ingår i författarens avhandling.

Available from: 2014-09-17 Created: 2014-09-17 Last updated: 2023-04-05Bibliographically approved

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Broberg, Patrik

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