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Ultrasound object fields in air reconstructed using digital phase conjugation
HTW, Hochschule für Technik und Wirtschaft, Dresden.
HTW, Hochschule für Technik und Wirtschaft, Dresden.
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2002 (English)In: Proceedings: 2002 IEEE Ultrasonics Symposium : October 8 - 11, 2002, Forum Hotel, Munich, Germany / [ed] Donald E. Yuhas, Piscataway, NJ: IEEE Communications Society, 2002, p. 765-768Conference paper, Published paper (Refereed)
Abstract [en]

A scanning laser Doppler vibrometer is used to record 2D ultrasound fields in air. The laser light of the vibrometer traverses the sound field to and from a rigid reflector and determines the velocity field, a quantity proportional to the sound pressure rate, in each scanned point relative to the sound source. The object sound is the scattered field from objects outside the recording area. Digital reconstruction using phase conjugation (time reversal) of the object sound field is then performed and the original object field intensity and phase is reconstructed.

Place, publisher, year, edition, pages
Piscataway, NJ: IEEE Communications Society, 2002. p. 765-768
National Category
Applied Mechanics
Research subject
Experimental Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-35636DOI: 10.1109/ULTSYM.2002.1193511Local ID: a4180cb0-bb57-11db-b560-000ea68e967bISBN: 0-7803-7582-3 (print)OAI: oai:DiVA.org:ltu-35636DiVA, id: diva2:1008889
Conference
IEEE Ultrasonics Symposium : 08/10/2002 - 11/10/2002
Note
Godkänd; 2002; 20061026 (cira)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved

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Olsson, ErikMolin, Nils-ErikSjödahl, Mikael

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CiteExportLink to record
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  • apa
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