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Time-averaged in-line digital holographic interferometry for vibration analysis.

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Time-averaged in-line digital holographic interferometry for vibration analysis.

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dc.contributor.author Anand, Asundi.
dc.contributor.author Singh, Vijay Raj.
dc.date.accessioned 2011-09-08T06:41:38Z
dc.date.available 2011-09-08T06:41:38Z
dc.date.copyright 2006
dc.date.issued 2011-09-08
dc.identifier.citation Anand, A., & Singh, V. R. (2006). Time-averaged in-line digital holographic interferometry for vibration analysis. Applied optics, 45(11), 2391-2395.
dc.identifier.issn 0003-6935
dc.identifier.uri http://hdl.handle.net/10220/7025
dc.description.abstract Time-averaged in-line digital holography is applied for vibration analysis. In particular, by use of a double-exposure approach, simultaneous determination of vibration mode shape and mean static state deformation during a vibration cycle are obtained. The subtraction of two numerically reconstructed digital holograms recorded at the same resonant frequency but with a small difference in amplitude shows the mixing of Bessel-type time-averaged fringes owing to vibration and of the double-exposure fringes owing to differences in the mean deformation of the object. It is shown that separation of these fringe patterns can be readily accomplished numerically. An experimental demonstration of this effect by use of in-line digital holography for relatively small membranes is demonstrated.
dc.format.extent 5 p.
dc.language.iso en
dc.relation.ispartofseries Applied optics
dc.subject DRNTU::Science::Physics::Optics and light.
dc.title Time-averaged in-line digital holographic interferometry for vibration analysis.
dc.type Journal Article
dc.contributor.school School of Mechanical and Aerospace Engineering
dc.identifier.doi http://dx.doi.org/10.1364/AO.45.002391
dc.description.version Accepted version
dc.identifier.rims 143345

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