National Repository of Grey Literature 3 records found  Search took 0.00 seconds. 
Kalibracni vzorky pro nelinearni ultrazvukovou spektroskopii
Převorovský, Zdeněk ; Van Den Abeele, K.
The experimental procedures are described, based on nonlinear elastic wave spectroscopy (NEWS). Special testing samples - PMMA blocks with laser induced cracks - are designed to verify that procedures. Opening of cracks enables kissing effect of their faces at relatively small amplitude of dynamic excitation which plays substantial role in Nonlinear Wave Modulation Spectroscopy method (frequency mixing) where it causes creation of side lobes in frequency spectra.
Wavelet transform utilization in dispersive laser-generated ultrasound signal processing
Blaháček, Michal ; Převorovský, Zdeněk ; Landa, Michal
New method of dispersion curves construction using experimental data is discussed in the paper. The method is based on CWT transform utilization.
Integration of AE method to risk based approach of inspection planning
Přibáň, Miroslav ; Hora, Petr
The article discusses the question of function, benefit and reliability of the AE applications in the wide context of structure integrity inspection in the scope of Risk Based approach to inspection tasks and planning.

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