| Photoacoustic Doppler measurement of flow using tone burst excitation. | |
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MedLine Citation:
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PMID: 20389434 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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In this paper a novel technique for flow measurement which is based on the photoacoustic (PA) Doppler effect is described. A significant feature of the proposed approach is that it can be implemented using tone burst optical excitation thus enabling simultaneous measurement of both velocity and position. The technique, which is based on external modulation and heterodyne detection, was experimentally demonstrated by measurement of the flow of a suspension of carbon particles in a silicon tube and successfully determined the particles mean velocity up to values of 130 mm/sec, which is about 10 times higher than previously reported PA Doppler set-ups. In the theoretical part a rigorous derivation of the PA response of a flowing medium is described and some important simplifying approximations are highlighted. |
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Authors:
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Adi Sheinfeld; Sharon Gilead; Avishay Eyal |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Optics express Volume: 18 ISSN: 1094-4087 ISO Abbreviation: Opt Express Publication Date: 2010 Mar |
Date Detail:
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Created Date: 2010-04-14 Completed Date: 2010-07-08 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101137103 Medline TA: Opt Express Country: United States |
Other Details:
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Languages: eng Pagination: 4212-21 Citation Subset: - |
Affiliation:
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School of Electrical Engineering, Faculty of Engineering, Tel-Aviv University, Ramat Aviv, Tel-Aviv 69978, Israel. adishein@post.tau.ac.il |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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