Classification of Ultrasonic Signals
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F05%3A03110370" target="_blank" >RIV/68407700:21230/05:03110370 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Classification of Ultrasonic Signals
Original language description
In ultrasonic defectoscopy it is very difficult to detect flaw in materials with coarse-grain structure. The ultrasonic signals measured on these materials contain echoes which are very similar to fault echo. These echoes arise from grains which are contained in material. For detection of flaw various methods for suppressing of echoes from grains have to be used. In this work we used the method for filtering of ultrasonic signal based on discrete wavelet transform. For classification of ultrasonic signals in A-scan we used pattern recognition method called support vector machines. In this study we classify signals with fault echo, echo from weld and back-wall echo. Ultrasonic signals were measured on material used for constructing airplane engines. Theexperimental results indicate the performance of the proposed approach.
Czech name
Klasifikace ultrazvukových signálů
Czech description
Práce popisuje metody pro klasifikaci ultrazvukových signálů. Pro klasifikaci jsou použity tři typy měřených signálů: signál v místě s vadou, signál bez vady a signál v místě sváru. Signály jsou klasifikovány metodou support vector machines, které předchází filtrace signálu pomocí vlnkových paketů.
Classification
Type
D - Article in proceedings
CEP classification
JB - Sensors, detecting elements, measurement and regulation
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GD102%2F05%2FH032" target="_blank" >GD102/05/H032: Research, development and optimisation of measuring systems and measurement uncertainty estimation by their application</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2005
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Application of Contemporary Non-Destructive Testing in Engineering - Conference Proceedings
ISBN
961-90610-5-5
ISSN
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e-ISSN
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Number of pages
7
Pages from-to
27-33
Publisher name
The Slovenian Society for Non-Destructive Testing
Place of publication
Ljubljana
Event location
Portorož
Event date
Sep 1, 2005
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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