Sizing the thermal resistance of vertical cracks using pulsed infrared thermography with laser spot excitation

被引：0
|
作者：
Pech-May, N. W. [1 ,2 ]
Oleaga, A. [1 ]
Mendioroz, A. [1 ]
Salazar, A. [1 ]
机构：
[1] Univ Basque Country, UPV EHU, Dept Fis Aplicada 1, Escuela Tecn Super Ingn, Alameda Urquijo S-N, Bilbao 48013, Spain
[2] CINVESTAV, Dept Appl Phys, Unidad Merida, Carretera Antigua Progreso Km6,AP 73, Cordemex 97310, Merida Yucatan, Mexico
来源：
13TH QUANTITATIVE INFRARED THERMOGRAPHY CONFERENCE | 2016年
关键词：
D O I：
10.21611/qirt.2016.112
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
We propose a method to measure the width of infinite vertical cracks using pulsed laser spot infrared thermography. We obtain the theoretical time evolution of the surface temperature of a sample containing such a crack when the surface is illuminated by a pulsed circular Gaussian laser spot. The surface temperature on a sample with calibrated cracks is measured using an infrared camera. By fitting the surface temperature to the model, the thickness of the crack is obtained. A good agreement between the nominal and retrieved thickness of the fissure is found confirming the validity of the model.
引用
收藏
页码：712 / 713
页数：2
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