Abstract
Pulsed thermography is a method of detection of thermal heterogeneity in layered structures. The temperature of an object excited by a pulse of energy varies depending on the thermal properties of each layer. It is possible to detect a thermal heterogeneity of the tested object on the basis of changes with time in the temperature of its surface. The values of temperature contrast between a reference area surface and a surface of area of the structure with a heterogeneity, obtained for successive moments of time, which vary depending on the type and depth of the heterogeneity. The method proposed by the authors consisted in determining the correlation coefficient of the temperature contrast function in the time domain obtained on the basis of thermographic measurements with the function obtained from modeling or from measurements of a well-known heterogeneity (examined with another method) in a similar structure. The resulting image is created from the correlation coefficients obtained for each pixel. This method enhances the detection of a thermal heterogeneity.
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References
Maldague X., Galmiche F., Ziadi A.: Infrared Phys. Technol. 43, 175 (2002)
V.P. Vavilov, D.D. Burleigh, in Nondestructive Testing Handbook: Infrared and Thermal Testing, ed. by X.P.V. Maldague, P.O. Moore (ASNT, Columbus, 2001), pp. 54–75
G. De Mey, The Use of Thermal Impedances for Characterization of Electronic Devices, in Proceedings of 8th Conference of Infrared Thermography and Thermometry, 2009, pp. 73–79
Zöcke C., Langmeier A., Stößel R., Arnold W.: Quant. Infrared Thermography J. 6, 63 (2009)
M. Klein, A. Bendada, M. Pilla, C. Ibarra-Castanedo, X. Maldague, Enhancing Infrared Images Contrast for Pulsed Thermography, in Proceedings of 9th Int. Conference on Quantitative InfraRed Thermography, Krakow, Poland, 2008, pp. 327–335
Suszynski Z., Duer R.: Microelectron. Reliab. 45, 1910 (2005)
Arsoba R., Suszyński Z.: J. Phys. IV 117, 1 (2004)
Z. Suszyński, Thermal Model Based on the Electrical Analogy of the Thermal Processes, in Proceedings of 10th International Conference Photoacoustic and Photothermal Phenomena, Rome, 1998, pp.145–146
Z. Suszynski, M. Bednarek, M. Kosikowski, Method and Measurement Setup for Detection of the Shape of Optical Power Pulse in Active Thermography, in Proceedings of 6th International Workshop on Thermal Investigations of ICs and Systems, Barcelona, 2010, pp. 45–48
Acknowledgment
The measurements were carried out on a genuine experimental setup constructed in the Koszalin University of Technology in cooperation with the Main School of Fire Service in Warsaw within a grant programme of the Ministry of Science and Higher Education of the Republic of Poland No. NN515247037.
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Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License (https://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Suszyński, Z., Bednarek, M. Application of the Correlation Function in the Detection of Thermal Heterogeneity Using Pulsed Thermography. Int J Thermophys 34, 680–690 (2013). https://doi.org/10.1007/s10765-012-1297-7
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DOI: https://doi.org/10.1007/s10765-012-1297-7