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

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9 Citations (Scopus)

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 languageEnglish
Pages (from-to)276-283
Number of pages8
JournalRussian Journal of Nondestructive Testing
Volume47
Issue number4
DOIs
Publication statusPublished - 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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