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035 _a(RuTPU)RU\TPU\network\1282
090 _a637185
100 _a20140603a1995 k y0rusy50 ba
101 0 _aeng
102 _aUS
105 _aa z 101zy
135 _adrnn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aCrawling spot thermal nondestructive testing (NDT) for plaster inspection and comparison with dynamic thermography with extended heating
_fP. Bison [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[Ref.: p. 59-60 (11 tit.)]
330 _aDefects 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
333 _aРежим доступа: по договору с организацией-держателем ресурса
463 _tThermosense XVII, Orlando, FL, United States, April 17, 1995
_oProc. SPIE 2473
_v[P. 53-63]
_d1995
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aинфракрасная термография
610 1 _ainfrared thermography
610 1 _athermal nondestructive testing
610 1 _aтепловой неразрушающий контроль
701 1 _aBison
_bP.
_gPaolo
701 1 _aBraggiotti
_bА.
_gAlberto
701 1 _aBressan
_bCh.
_gChiara
701 1 _aMarinetti
_bS.
_gSergio
701 1 _aMazzoldi
_bA.
_gAndrea
701 1 _aVavilov
_bV. P.
_cSpecialist in the field of dosimetry and methodology of nondestructive testing (NDT)
_cDoctor of technical sciences (DSc), Professor of Tomsk Polytechnic University (TPU)
_f1949-
_gVladimir Platonovich
_2stltpush
_3(RuTPU)RU\TPU\pers\32161
801 2 _aRU
_b63413507
_c20140603
_gRCR
856 4 _uhttp://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=999258
942 _cCF