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Surface profile measurement of low-frequency vibrating objects using temporal analysis of fringe pattern

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Surface profile measurement of low-frequency vibrating objects using temporal analysis of fringe pattern

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dc.contributor.author Tay, Cho Jui
dc.contributor.author Quan, Chenggen
dc.contributor.author Fu, Yu
dc.contributor.author Chen, Lujie
dc.contributor.author Shang, H. M.
dc.date.accessioned 2011-01-26T04:23:23Z
dc.date.available 2011-01-26T04:23:23Z
dc.date.copyright 2004
dc.date.issued 2011-01-26T04:23:23Z
dc.identifier.citation Tay, C. J., Quan, C., Fu, Y., Chen, L., & Shang, H. M. (2004). Surface profile measurement of low-frequency vibrating objects using temporal analysis of fringe pattern. Optics and Laser Technology, 36(6), 471-476.
dc.identifier.issn 0030-3992
dc.identifier.uri http://hdl.handle.net/10220/6707
dc.description.abstract A simple and accurate algorithm (phase scanning method) is proposed for 3D surface contouring and dynamic response determination of a vibrating object. A sinusoidal fringe pattern is projected onto a low-frequency vibrating object by a programmable liquid crystal display projector. The fringe patterns are captured by a high-speed CCD camera with a telecentric gauging lens. Phase values are evaluated point by point using phase scanning method. From the phase values of each point on the object, the contour of the specimen at different instants of vibration can be retrieved. In this paper, a small vibrating coin is used to demonstrate the validity of the method and the experimental results are compared with test results on a stationary coin using four-step phase shifting and fast Fourier transform methods. The technique is especially useful in applications where the vibrating object has a complicated shape.
dc.format.extent 25 p.
dc.language.iso en
dc.relation.ispartofseries Optics and laser technology
dc.rights This is the author created version of a work that has been peer reviewed and accepted for publication by Optics and Laser Technology, Elsevier. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI:http://dx.doi.org/10.1016/j.optlastec.2003.12.002].
dc.subject DRNTU::Science::Physics::Optics and light.
dc.title Surface profile measurement of low-frequency vibrating objects using temporal analysis of fringe pattern
dc.type Journal Article
dc.contributor.research Temasek Laboratories
dc.identifier.doi http://dx.doi.org/10.1016/j.optlastec.2003.12.002
dc.description.version Accepted version

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