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Simulation and Evaluation of Small High-Frequency Side Scan Sonars Using COMSOL
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
Electrical Measurements, Lund University.
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2009 (English)In: COMSOL Conference 2009 Milan, 2009Conference paper, Published paper (Other academic)
Abstract [en]

High frequency side-scan sonar, to be fitted on a miniaturized submersible explorer, have been simulated and built. The purpose of this study is to see if COMSOL Multiphysics can be used to predict the performance of the sonar, especially the beam width, setting the resolution of the system. Four models were created, from simple 2-D geometries to more complex 3-D models. The simulated beam widths were compared with measurements to see which of the models agreed best. It was found that all models agree with the experimental results to varying degrees, and mostly with a difference of less than 6%. . It was found that the simplest model agreed best with the measurements, closely followed by the most complex model. Also taking the computational load into consideration the simpler model might then be a better choice to use.

Place, publisher, year, edition, pages
2009.
Keyword [en]
Sonar, beam width, acoustic imaging
National Category
Engineering and Technology
Research subject
Engineering Science with specialization in Microsystems Technology
Identifiers
URN: urn:nbn:se:uu:diva-120403OAI: oai:DiVA.org:uu-120403DiVA: diva2:303290
Conference
COMSOL Conference 2009 Milan
Projects
Deeper Access, Deeper Understanding (DADU)
Available from: 2010-03-11 Created: 2010-03-11 Last updated: 2016-04-14Bibliographically approved

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http://www.comsol.com/papers/6780/

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Jonsson, JonasEdqvist, ErikKratz, HenrikThornell, Greger

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Language
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