Please use this identifier to cite or link to this item: https://doi.org/10.1016/S0030-3992(01)00054-8
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dc.titleWhole field surface roughness measurement by laser speckle correlation technique
dc.contributor.authorToh, S.L.
dc.contributor.authorQuan, C.
dc.contributor.authorWoo, K.C.
dc.contributor.authorTay, C.J.
dc.contributor.authorShang, H.M.
dc.date.accessioned2014-06-17T06:38:17Z
dc.date.available2014-06-17T06:38:17Z
dc.date.issued2001-09
dc.identifier.citationToh, S.L., Quan, C., Woo, K.C., Tay, C.J., Shang, H.M. (2001-09). Whole field surface roughness measurement by laser speckle correlation technique. Optics and Laser Technology 33 (6) : 427-434. ScholarBank@NUS Repository. https://doi.org/10.1016/S0030-3992(01)00054-8
dc.identifier.issn00303992
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/61700
dc.description.abstractThis paper describes a speckle correlation technique for the determination of surface roughness, ranging from 1.6 to 50 μm. Instead of moving the laser beam, the specimen is rotated to achieve angular speckle correlation (ASC) in the far-field plane. The technique is simple and requires minimum optical alignment. The experimental results show a good agreement with the standard specimen of known roughness. An error analysis on the experiment has been carried out. Together with the theoretical curves, the roughness values can be easily related to the change of incidence angle at a particular visibility of the correlation fringes between two speckle patterns. © 2001 Elsevier Science Ltd. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/S0030-3992(01)00054-8
dc.sourceScopus
dc.subjectASC
dc.subjectLaser speckle correlation
dc.subjectSurface roughness
dc.typeArticle
dc.contributor.departmentMECHANICAL ENGINEERING
dc.description.doi10.1016/S0030-3992(01)00054-8
dc.description.sourcetitleOptics and Laser Technology
dc.description.volume33
dc.description.issue6
dc.description.page427-434
dc.description.codenOLTCA
dc.identifier.isiut000170857100011
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