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

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

Xehetasun bibliografikoak
Parent link:	Thermosense XVII, Orlando, FL, United States, April 17, 1995: Proc. SPIE 2473. [P. 53-63].— , 1995
Beste egile batzuk:	Bison P. Paolo, Braggiotti А. Alberto, Bressan Ch. Chiara, Marinetti S. Sergio, Mazzoldi A. Andrea, Vavilov V. P. Vladimir Platonovich
Gaia:	Title screen 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 Режим доступа: по договору с организацией-держателем ресурса
Hizkuntza:	ingelesa
Argitaratua:	1995
Gaiak:	электронный ресурс труды учёных ТПУ инфракрасная термография infrared thermography thermal nondestructive testing тепловой неразрушающий контроль
Sarrera elektronikoa:	http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=999258
Formatua:	Baliabide elektronikoa Liburu kapitulua
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=637185

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