Experimental Signal Deconvolution in Acoustic Emission Identification Setup

0365612 - ÚT 2012 RIV CZ eng C - Conference Paper (international conference)
Farová, Zuzana - Převorovský, Zdeněk - Kůs, V. - Dos Santos, S.
Experimental Signal Deconvolution in Acoustic Emission Identification Setup.
NDT in Progress 2011. Brno: University of Technology Brno, 2011 - (Mazal, P.), s. 33-40. ISBN 978-80-214-4339-6.
[NDT in PROGRESS /6./. Praha (CZ), 10.10.2011-12.10.2011]
Institutional research plan: CEZ:AV0Z20760514
Keywords : TRA * Green function * experimental deconvolution * acoustic emission * identificatin
Subject RIV: BI - Acoustics

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.
Permanent Link: http://hdl.handle.net/11104/0200813