Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.optcom.2011.01.036
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dc.titleTwo wavelength simultaneous DSPI and DSP for 3D displacement field measurements
dc.contributor.authorBhaduri, B.
dc.contributor.authorTay, C.J.
dc.contributor.authorQuan, C.
dc.contributor.authorNiu, H.
dc.contributor.authorSjödahl, M.
dc.date.accessioned2014-06-17T06:37:30Z
dc.date.available2014-06-17T06:37:30Z
dc.date.issued2011-05-15
dc.identifier.citationBhaduri, B., Tay, C.J., Quan, C., Niu, H., Sjödahl, M. (2011-05-15). Two wavelength simultaneous DSPI and DSP for 3D displacement field measurements. Optics Communications 284 (10-11) : 2437-2440. ScholarBank@NUS Repository. https://doi.org/10.1016/j.optcom.2011.01.036
dc.identifier.issn00304018
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/61634
dc.description.abstractA novel optical system is proposed that implements digital speckle pattern interferometry (DSPI) and digital speckle photography (DSP) simultaneously using two wavelength illumination of an object for simultaneous measurement of all three components of the displacement vector field. A collimated red light illuminates both the object and a reference surface in a DSPI configuration which is sensitive to out-of-plane displacement field while a blue light illuminates the object in a DSP configuration which is sensitive to in-plane displacement fields. A color 3-CCD camera records the red and blue lights individually through its red and blue channels, respectively. Two reference images and one image in the deformed state of the object are required for quantitative measurement. Experimental results are presented to validate the system. © 2011 Elsevier B.V. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.optcom.2011.01.036
dc.sourceScopus
dc.subjectDigital speckle pattern interferometry (DSPI)
dc.subjectDigital speckle photography (DSP)
dc.subjectDisplacement measurement
dc.subjectFourier transform method (FTM)
dc.typeArticle
dc.contributor.departmentMECHANICAL ENGINEERING
dc.description.doi10.1016/j.optcom.2011.01.036
dc.description.sourcetitleOptics Communications
dc.description.volume284
dc.description.issue10-11
dc.description.page2437-2440
dc.description.codenOPCOB
dc.identifier.isiut000289128600005
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