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

Abstract

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.

Original language	English
Pages (from-to)	276-283
Number of pages	8
Journal	Russian Journal of Nondestructive Testing
Volume	47
Issue number	4
DOIs	https://doi.org/10.1134/S1061830911040103
Publication status	Published - 1 Apr 2011

Keywords

active thermal inspection
composite materials
flaws
nonstationary processes
wavelet transform

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1134/S1061830911040103

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title = "Processing of active thermal nondestructive testing results by the method of wavelet analysis",

abstract = "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 Morl{\'e}t, Paul, and Mexican-hat wavelets were used.",

keywords = "active thermal inspection, composite materials, flaws, nonstationary processes, wavelet transform",

author = "Vavilov, {V. P.} and Shiryaev, {V. V.} and Khorev, {V. S.}",

year = "2011",

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doi = "10.1134/S1061830911040103",

language = "English",

volume = "47",

pages = "276--283",

journal = "Russian Journal of Nondestructive Testing",

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publisher = "Maik Nauka-Interperiodica Publishing",

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AU - Vavilov, V. P.

AU - Shiryaev, V. V.

AU - Khorev, V. S.

PY - 2011/4/1

Y1 - 2011/4/1

N2 - 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.

AB - 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.

KW - active thermal inspection

KW - composite materials

KW - flaws

KW - nonstationary processes

KW - wavelet transform

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