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Simultaneous measurement of translation and tilt using digital speckle photography
National University of Singapore.
National University of Singapore.
National University of Singapore.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.ORCID iD: 0000-0003-4879-8261
2010 (English)In: Applied Optics, ISSN 1559-128X, E-ISSN 2155-3165, Vol. 49, no 18, p. 3573-3579Article in journal (Refereed) Published
Abstract [en]

A Michelson-type digital speckle photographic system has been proposed in which one light beam produces a Fourier transform and another beam produces an image at a recording plane, without interfering between themselves. Because the optical Fourier transform is insensitive to translation and the imaging technique is insensitive to tilt, the proposed system is able to simultaneously and independently determine both surface tilt and translation by two separate recordings, one before and another after the surface motion, without the need to obtain solutions for simultaneous equations. Experimental results are presented to verify the theoretical analysis.

Place, publisher, year, edition, pages
2010. Vol. 49, no 18, p. 3573-3579
National Category
Applied Mechanics
Research subject
Experimental Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-11339DOI: 10.1364/AO.49.003573ISI: 000278946300017Scopus ID: 2-s2.0-77955951949Local ID: a4928fc0-7a13-11df-ab16-000ea68e967bOAI: oai:DiVA.org:ltu-11339DiVA, id: diva2:984289
Note
Validerad; 2010; 20100617 (mike)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Sjödahl, Mikael

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