Original title: Experimental Signal Deconvolution in Acoustic Emission Identification Setup
Authors: Farová, Zuzana ; Převorovský, Zdeněk ; Kůs, V. ; Dos Santos, S.
Document type: Papers
Conference/Event: NDT in PROGRESS /6./, Praha (CZ), 2011-10-10 / 2011-10-12
Year: 2011
Language: eng
Abstract: Identification of acoustic sources is a great deal and the most important problem emerging in nondestructive testing. We present the basics of time reversal (TR) Acoustic Emission (AE) principle and point out the advantages of AE nondestructive testing for localization and classification of acoustic sources. This approach provides the tool for the defect localization by means of the reversal wave focusing in nonlinearity position in the material under consideration. Also, using TR operator to AE signal, we obtain convolutional signal in the closest neighborhood of acoustic source, which gives us the pure image of the real characteristics of AE source after deconvolution process applied to the signals detected.
Keywords: acoustic emission; experimental deconvolution; Green function; identificatin; TRA
Project no.: CEZ:AV0Z20760514 (CEP)
Host item entry: NDT in Progress 2011, ISBN 978-80-214-4339-6

Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0200813

Permalink: http://www.nusl.cz/ntk/nusl-80931


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