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

被引：14

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

页码：276 / 283

页数：8

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