Processing of active thermal nondestructive testing results by the method of wavelet analysis

被引：0
|
作者：
V. P. Vavilov
V. V. Shiryaev
V. S. Khorev
机构：
[1] Tomsk Polytechnic University,Institute of Introscopy
来源：
Russian Journal of Nondestructive Testing | 2011年 / 47卷
关键词：
active thermal inspection; wavelet transform; nonstationary processes; flaws; composite materials;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Wavelet transforms can be used for active thermal nondestructive testing for the identification of flaws that are located at different depths and produce Gaussian-like signals characterized by a time shift on a heated surface. The results of the application of scalar and complex wavelet analysis for increasing the signal/noise ratio in the active thermal inspection of flaws in composite materials and thermal-barrier coatings, as well as also for revealing the corrosion in metals, are described. Parent Morlét, Paul, and Mexican-hat wavelets were used.
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页码：276 / 283
页数：7
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