Crawling spot thermal nondestructive testing (NDT) for plaster inspection and comparison with dynamic thermography with extended heating

Paolo G. Bison, Alberto Braggiotti, Chiara Bressan, Ermanno G. Grinzato, S. Marinetti, Andrea Mazzoldi, Vladimir Vavilov

Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции

1 цитирование (Scopus)

Выдержка

Defects in building materials located parallel to the front surface, like plaster detachment, or perpendicularly, such as cracks, are detected creating a space-varying heat flux. A variant of the `flying spot' technique called `crawling spot' was developed in order to fit requirements of these materials. This nondestructive method is performed with a localized radiant heating of the surface and synchronized local temperature measurement in the IR band. The identification of delaminations and cracks was theoretically and experimentally studied using two different procedures. Results obtained for plaster detachments were compared with dynamic thermography, applied with an extended excitation of the surface and analysis of the normalized thermal contrast both in amplitude and time. Another technique requires a continuously moving spot to heat the surface while a sequence of thermograms is recorded. The temperature profile of each pixel has to be reconstructed according to the spot speed and trajectory. This procedure was applied to stone crack detection. The experimental apparatus is thoroughly described.

Язык оригиналаАнглийский
Название основной публикацииProceedings of SPIE - The International Society for Optical Engineering
РедакторыSharon A. Semanovich
Страницы53-63
Число страниц11
Том2473
СостояниеОпубликовано - 1995
СобытиеThermosense XVII: An International Conference on Thermal Sensing and Imaging Diagnostic Applications - Orlando, FL, USA
Продолжительность: 19 апр 199521 апр 1995

Другое

ДругоеThermosense XVII: An International Conference on Thermal Sensing and Imaging Diagnostic Applications
ГородOrlando, FL, USA
Период19.4.9521.4.95

Отпечаток

plasters
Plaster
Nondestructive examination
inspection
Inspection
Heating
heating
cracks
detachment
Radiant heating
radiant heating
Cracks
Crack detection
thermograms
Delamination
Temperature measurement
temperature profiles
temperature measurement
Heat flux
heat flux

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Цитировать

Bison, P. G., Braggiotti, A., Bressan, C., Grinzato, E. G., Marinetti, S., Mazzoldi, A., & Vavilov, V. (1995). Crawling spot thermal nondestructive testing (NDT) for plaster inspection and comparison with dynamic thermography with extended heating. В S. A. Semanovich (Ред.), Proceedings of SPIE - The International Society for Optical Engineering (Том 2473, стр. 53-63)

Crawling spot thermal nondestructive testing (NDT) for plaster inspection and comparison with dynamic thermography with extended heating. / Bison, Paolo G.; Braggiotti, Alberto; Bressan, Chiara; Grinzato, Ermanno G.; Marinetti, S.; Mazzoldi, Andrea; Vavilov, Vladimir.

Proceedings of SPIE - The International Society for Optical Engineering. ред. / Sharon A. Semanovich. Том 2473 1995. стр. 53-63.

Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции

Bison, PG, Braggiotti, A, Bressan, C, Grinzato, EG, Marinetti, S, Mazzoldi, A & Vavilov, V 1995, Crawling spot thermal nondestructive testing (NDT) for plaster inspection and comparison with dynamic thermography with extended heating. в SA Semanovich (ред.), Proceedings of SPIE - The International Society for Optical Engineering. том. 2473, стр. 53-63, Thermosense XVII: An International Conference on Thermal Sensing and Imaging Diagnostic Applications, Orlando, FL, USA, 19.4.95.
Bison PG, Braggiotti A, Bressan C, Grinzato EG, Marinetti S, Mazzoldi A и соавт. Crawling spot thermal nondestructive testing (NDT) for plaster inspection and comparison with dynamic thermography with extended heating. В Semanovich SA, редактор, Proceedings of SPIE - The International Society for Optical Engineering. Том 2473. 1995. стр. 53-63
Bison, Paolo G. ; Braggiotti, Alberto ; Bressan, Chiara ; Grinzato, Ermanno G. ; Marinetti, S. ; Mazzoldi, Andrea ; Vavilov, Vladimir. / Crawling spot thermal nondestructive testing (NDT) for plaster inspection and comparison with dynamic thermography with extended heating. Proceedings of SPIE - The International Society for Optical Engineering. редактор / Sharon A. Semanovich. Том 2473 1995. стр. 53-63
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