Název:
Mapping of problematic regions in AE source location
Autoři:
Chlada, Milan ; Převorovský, Zdeněk Typ dokumentu: Příspěvky z konference Konference/Akce: International Workshop of NDT Experts /9./, Praha (CZ), 20171009
Rok:
2017
Jazyk:
eng
Abstrakt: Similarly to Global Positioning System, location of material defects by acoustic emission method meets the geometrical dilution of precision (GDOP) phenomena. Besides the several attitudes how to mathematically express its measure and compare particular sensor configurations in accordance with desired location precision, recently proposed method brings extended possibilities for detection of critical regions characterized by strong sensitivity of location results to signal arrival time changes or errors. Analogically to GDOP parameter it yields the sensitivity map available even for non-continuous or anisotropic materials. During the computation it uses the algorithm for finding the shortest ways in discretely defined bodies, which furthermore enables to view the problem through the so-called similarity and ambiguity maps.
Klíčová slova:
acoustic emission; geometrical dilution of precision; source location Číslo projektu: GA17-22615S (CEP) Poskytovatel projektu: GA ČR Zdrojový dokument: NDT in PROGRESS, ISBN 978-80-87012-63-5
Instituce: Ústav termomechaniky AV ČR
(web)
Informace o dostupnosti dokumentu:
Dokument je dostupný v příslušném ústavu Akademie věd ČR. Původní záznam: http://hdl.handle.net/11104/0279210