National Repository of Grey Literature 4 records found  Search took 0.00 seconds. 
Time reversal acoustic used to defect detection in structures
Převorovský, Zdeněk
Time reversal acoustics (TRA) method application in defects detection is described in the paper. Non-linear version of the TRA is discussed primarily.
Using of NEWS frequency mixing method for defects detection in aircraft structures
Kvita, Pavel ; Převorovský, Zdeněk
Frequency mixing NEWS method application in defects detection in model aircraft structure is main goal of the paper.
Expert AE signal arrival detection
Chlada, Milan
New method of AE signal arrival detection is described in the paper. The method is based on AE signal energy and local gravity center monitoring.
Acoustic emisson of capacitors under voltage
Blaháček, Michal ; Převorovský, Zdeněk
Acoustic emission activity measurement of roll-type capacitors under the voltage 210-260 V is described in the paper. New signal processing method based on wavelet filtration application was used to improve recorded signals signal/noise ratio.

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