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Expert AE signal arrival detection
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SYSNO ASEP 0363594 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Expert AE signal arrival detection Author(s) Chlada, Milan (UT-L) RID, ORCID
Převorovský, Zdeněk (UT-L) RIDNumber of authors 2 Source Title International Journal of Microstructure and Materials Properties - ISSN 1741-8410
Roč. 6, 3/4 (2011), s. 191-205Number of pages 14 s. Action NDT in PROGRESS /4./ Event date 05.11.2007-07.11.2007 VEvent location Praha Country CZ - Czech Republic Event type EUR Language eng - English Country CH - Switzerland Keywords acoustic emission ; signal arrival detection Subject RIV BI - Acoustics R&D Projects FR-TI1/274 GA MPO - Ministry of Industry and Trade (MPO) GA101/07/1518 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20760514 - UT-L (2005-2011) DOI 10.1504/IJMMP.2011.043215 Annotation Accurate acoustic emission (AE) source location is the primary goal of the defect analysis following the AE signal detection. The source localization is mostly based on arrival time differences of signals recorded by several transducers. Considerable signal distortion happens during the wave propagation through the solid. Inaccurate determination of signal onset and arrival time differences respectively, are the greatest sources of localization errors. Especially, in a case of higher requirements on accuracy and robustness, the results of currently used localization methods appear to be insufficient. In the paper, recently improved version of the new signal - shape based algorithm, modeling an expert system of the elastic wave arrival detection, is introduced. In many applications, this method, based on signal energy and local gravity center evolution, has been proved as rugged enough, fast and easily applicable. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2012 Electronic address http://www.inderscience.com/search/index.php?mainAction=search&action=record&rec_id=43215&prevQuery=&ps=10&m=or
Number of the records: 1