Title:	Flash pulse phase thermography for a paint thickness determination
Other Titles:	Flash pulzní termografie pro určení tloušťky nátěru
Authors:	Muzika, Lukáš Švantner, Michal
Citation:	MUZIKA, L., ŠVANTNER, M. Flash pulse phase thermography for a paint thickness determination. In: 4th International Conference on PING 2019 - Modern Trends in Material Engineering. Bristol: Institute of Physics Publishing, 2020. ISSN 1757-8981.
Issue Date:	2020
Publisher:	Institute of Physics Publishing
Document type:	konferenční příspěvek conferenceObject
URI:	2-s2.0-85080888269 http://hdl.handle.net/11025/41914
ISSN:	1757-8981
Keywords:	termografie;termografické testování;infračervené testování;NDT;flash-pulzní termografie;nedestruktivní inspekce materiálu;povlaky;nátěry
Keywords in different language:	thermography;thermographic testing;infrared testing;NDT;flash-pulse thermography;nondestructive material inspection;coatings;paints
Abstract in different language:	The contribution describes a fast contactless measurement of a paint thickness nonuniformity using flash pulse thermography. Specimens sprayed by a paint were thermally excited by a flash lamp and temperature responses were recorded by an infrared camera. The recorded sequences were post-processed with Fast Fourier Transform to obtain phase angles. Differences in the resulting images showed phase differences which corresponded to a paint thickness nonuniformity. Furthermore, the phases were correlated with the thickness by means of calibration curve so that the paint thickness could be determined with flash pulse phase thermography measurement. The method showed a promising potential in the contactless evaluation of the paint thickness. Average error of the thickness determination was less than 10 % for samples with paint thickness from 41 to 74 μm on AISI 304 substrate. Advantages, disadvantages and limitations of described method were discussed.
Rights:	© Institute of Physics Publishing
Appears in Collections:	Konferenční příspěvky / Conference papers (CT3) OBD

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