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 |
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Pages (from-to) | 276-283 |
Number of pages | 8 |
Journal | Russian Journal of Nondestructive Testing |
Volume | 47 |
Issue number | 4 |
DOIs | |
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