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3D Synthetic Aperture Imaging Using a Water-Jet Coupled Large Aperture Single Transducer
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.ORCID iD: 0000-0002-9992-7791
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.ORCID iD: 0000-0002-6216-6132
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Operation, Maintenance and Acoustics.
TWI Technology Centre Wales.
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2014 (English)In: 2014 IEEE International Ultrasonics Symposium (IUS 2014): Chicago, Ill. 3-6 September 2014, Piscataway, NJ: IEEE Communications Society, 2014, 1372-1375 p.Conference paper, Published paper (Refereed)
Abstract [en]

This paper presents a technique for in-situ non-destructive testing of materials with applications in railway crossings. The novelty is in successfully applying the Virtual Source (VS) concept using water jet coupling for a large transducer. By focusing the sound field at the surface of the sample, the water jet probe can be built with a small nozzle opening, limiting the water consumption and making it viable for field applications. The annular geometry of the large transducer ensures the spherical wavefront assumed in the application of the SAFT algorithm, which usually limits the size of the transducer

Place, publisher, year, edition, pages
Piscataway, NJ: IEEE Communications Society, 2014. 1372-1375 p.
Series
Proceedings - IEEE Ultrasonics Symposium, ISSN 1948-5719
National Category
Signal Processing Other Civil Engineering
Research subject
Signal Processing; Operation and Maintenance
Identifiers
URN: urn:nbn:se:ltu:diva-40614DOI: 10.1109/ULTSYM.2014.0339Local ID: fcdf223e-1ad8-4026-9d1a-623cb9a7a1efISBN: 9781479970490 (print)OAI: oai:DiVA.org:ltu-40614DiVA: diva2:1014136
Conference
IEEE International Ultrasonics Symposium : 03/09/2014 - 06/09/2014
Note
Validerad; 2015; Nivå 1; 20140828 (johanc)Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2017-11-25Bibliographically approved

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fulltext(716 kB)47 downloads
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Castaño, MiguelCarlson, Johan E.Rantatalo, Matti
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