Processing of Active Thermal Nondestructive Testing Results by the Method of Wavelet Analysis

被引：15
|
作者：
Vavilov, V. P. [1 ]
Shiryaev, V. V. [1 ]
Khorev, V. S. [1 ]
机构：
[1] Tomsk Polytech Univ, Inst Introscopy, Tomsk 634028, Russia
来源：
RUSSIAN JOURNAL OF NONDESTRUCTIVE TESTING | 2011年 / 47卷 / 04期
基金：
俄罗斯基础研究基金会;
关键词：
active thermal inspection; wavelet transform; nonstationary processes; flaws; composite materials;
D O I：
10.1134/S1061830911040103
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
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 Morlet, Paul, and Mexican-hat wavelets were used.
引用
收藏
页码：276 / 283
页数：8
相关论文
共 50 条
12345