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Uniform circular array for structural health monitoring of composite structures
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Signals and Systems Group. (Signals and systems, NDT)
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Signals and Systems Group. (Signals and systems, NDT)
2008 (English)In: HEALTH MONITORING OF STRUCTURAL AND BIOLOGICAL SYSTEMS 2008 / [ed] Kundu, T, 2008, A9352-A9352 p.Conference paper, Published paper (Refereed)
Abstract [en]

Phased array with all-azimuth angle coverage would be extremely useful in structural health monitoring (SHM) of planar structures. One method to achieve the 360 degrees coverage is to use uniform circular arrays (UCAs). In this paper we present the concept of UCA adapted for SHM applications. We start from a brief presentation of UCA beamformers based on the principle of phase mode excitation. UCA performance is illustrated by the results of beamformer simulations performed for the narrowband and wideband ultrasonic signals. Preliminary experimental results obtained with UCA used for the reception of ultrasonic signals propagating in an aluminum plate are also presented.

Place, publisher, year, edition, pages
2008. A9352-A9352 p.
Series
PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE), ISSN 0277-786X ; 6935
Keyword [en]
structural health monitoring, phased arrays, beamforming
National Category
Signal Processing
Research subject
Signal Processing
Identifiers
URN: urn:nbn:se:uu:diva-111051ISI: 000257136900067ISBN: 978-0-8194-7121-5 (print)OAI: oai:DiVA.org:uu-111051DiVA: diva2:279240
Conference
Conference on Health Monitoring of Structural and Biological Systems San Diego, CA, MAR 10-13, 2008
Available from: 2009-12-02 Created: 2009-12-02 Last updated: 2016-04-13Bibliographically approved

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Stepinski, TadeuszEngholm, Marcus

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Output format
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