Thermal diffusivity measurement of insulating material using infrared thermography

• Autorzy: Chudzik, S.
• Języki publikacji: EN

Abstrakty

EN

The article presents the results of research developing methods for determining the coefficient of thermal diffusivity of thermal insulating material. This method applies a periodic heating as an excitation and an infrared camera is used to measure the temperature distribution on the surface of tested material. In simulation study, the usefulness of known analytical solution of the inverse problem was examined using a three-dimensional model of the phenomenon of heat diffusion in the sample of tested material. To solve the coefficient inverse problem, an approach using artificial neural network is proposed. The measurements were performed on an experimental setup equipped with a ThermaCAM PM 595 infrared camera and frame grabber. The experiment allowed to verify the chosen 3D model of heat diffusion phenomenon and to determine suitability of the proposed test method.

Słowa kluczowe

EN

infrared thermography; thermal insulating material; thermal diffusivity

• Czasopismo: Opto-Electronics Review
• Rocznik: 2012
• Tom: Vol. 20, No. 1
• Strony: 40-46
• Opis fizyczny: Bibliogr. 16 poz., wykr.

Twórcy

autor

Chudzik, S.

• Institute of Electronics and Control Systems, Częstochowa University of Technology, 17 Armii Krajowej Ave., 42-200 Częstochowa, Poland,

Bibliografia

• 1. W. Minkina and S. Chudzik, Measurement of Thermal Parameters of Thermoinsulating Materials – Instrumentation and Methods Instruments and Methods, Publishing Office of Częstochowa University of Technology, Częstochowa, 2004. (in Polish)
• 2. S. Marinetti, P.G. Bison, E. Grinzato, and A. Musico, “Thermal diffusivity measurement of stainless steel by periodic heating technique”, AITA – Advanced Infrared Technology and Applications, Venezia, 316–321 (1999).
• 3. X. Maldague, Theory and Practice of Infrared Technology for Nondestructive Testing, John Wiley & Sons, Inc., New York, 2001.
• 4. J.C. Murphy, L.C. Aamodt, and J.W. Maclachlan Spicer, Principles of Photothermal Detection in Solids in Principles and Perspectives of Photothermal and Photoacoustic Phenomena, edited by A. Mandelis, Elsevier, New York, pp. 41–94, 1992.
• 5. G. Gralewicz, G. Owczarek, and B. Więcek, “Investigations of single and multilayer structures using lock−In thermography – possible applications”, Int. J. Occup. Saf. Ergo. 11, 211–215 (2005).
• 6. C. Boue and D. Fournier, “Infrared thermography measurement of the thermal parameters (effusivity, diffusivity and conductivity) of materials”, QIRT Journal 6, 175–188 (2009).
• 7. Thermovision Measurements in Practice, edited by H. Madura, Measurement, Automation, Control Publishers, Warsaw, 2004. (in Polish)
• 8. W. Minkina, Thermovision Measurements – Instruments and Methods, Publishing Office of Częstochowa University of Technology, Częstochowa, 2004. (in Polish)
• 9. B. Więcek, M. Felczak, K. Tomalczyk, B. Ostrowski, M. Lis, and T. Wajman, “The application of thermography in the investigation of the buildings thermal insulation”, Measurements, Automation, Control 51, 11 (2005). (in Polish)
• 10. J. Gajda and R. Sroka, Measurement of Phase Angle – Methods – Systems – Algorithms, AGH Publishing Office, ISBN 83−908295−6−8, p. 517, Cracow, 2000. (in Polish)
• 11. S.J. Orfanidis, Optimum Signal Processing. An Introduction, 2nd Edition, Prentice−Hall, Englewood Cliffs, NJ, 1996.
• 12. W. Minkina and S. Dudzik, Infrared Thermography – Errors and Uncertainties, John Wiley & Sons Ltd, Chichester, 2009.
• 13. A. Rogalski, Infrared Detectors, Gordon and Breach Science Publishers, Amsterdam, 2000.
• 14. S. Dudzik, “A simple method for defect area detection using active thermography”, Opto−Electron. Rev. 17, 338–344 (2009).
• 15. Guide to the Expression of Uncertainty in Measurement, Supplement 1, “Numerical methods for the propagation of distributions”, Joint Committee for Guides in Metrology, 2004.
• 16. J. Terpiłowski, “A modified flash method for determination of thermal diffusivity in semitransparent for laser radiation solids”, Arch. Thermodyn. 25, 39–68 (2004).