Title: Flash pulse phase thermography for a paint thickness determination
Authors: Muzika, Lukáš
Švantner, Michal
Citation: JIRKOVÁ, Hana ed.; JENÍČEK, Štepán ed. Proceedings PING 2019: modern trends in material engineering: 10.-13.09.2019, Pilsen. 1. vyd. Plzeň: University of West Bohemia, 2019, s. 74. ISBN 978-80-261-0879-5.
Issue Date: 2019
Publisher: University of West Bohemia
Document type: konferenční příspěvek
conferenceObject
URI: http://hdl.handle.net/11025/35250
ISBN: 978-80-261-0879-5
Keywords: IRNDT;flash pulzní termografie;měření tloušťky;kontrola kvality
Keywords in different language: IRNDT;flash pulse thermography;thickness measurement;quality control
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 non-uniformity. 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: © University of West Bohemia
Appears in Collections:Konferenční příspěvky / Conference papers (CT3)
Proceedings PING 2019: modern trends in material engineering
Proceedings PING 2019: modern trends in material engineering

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