Please use this identifier to cite or link to this item:
https://doi.org/10.1016/j.optcom.2003.11.035
DC Field | Value | |
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dc.title | Determination of surface contour by temporal analysis of shadow moiré fringes | |
dc.contributor.author | Quan, C. | |
dc.contributor.author | Fu, Y. | |
dc.contributor.author | Tay, C.J. | |
dc.date.accessioned | 2014-06-17T06:16:44Z | |
dc.date.available | 2014-06-17T06:16:44Z | |
dc.date.issued | 2004-01-15 | |
dc.identifier.citation | Quan, C., Fu, Y., Tay, C.J. (2004-01-15). Determination of surface contour by temporal analysis of shadow moiré fringes. Optics Communications 230 (1-3) : 23-33. ScholarBank@NUS Repository. https://doi.org/10.1016/j.optcom.2003.11.035 | |
dc.identifier.issn | 00304018 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/59886 | |
dc.description.abstract | A simple temporal analysis algorithm (phase scanning method) is proposed for 3-D surface profile measurement of a vibrating object based on shadow moiré technique. A grating is positioned close to a low-frequency vibrating object and its shadow is observed through the grating. The moiré fringe patterns, generated by the interference of grating lines and shadow lines, 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 high-quality surface profile of the specimen at different instants of vibration can be retrieved. In this application, two specimens are tested to demonstrate the validity of the method, one is a spherical cap with height of 4 mm, the other is a small coin with unevenness of less than 0.2 mm. The experimental results are compared with test results using mechanical stylus method. © 2003 Elsevier B.V. All rights reserved. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.optcom.2003.11.035 | |
dc.source | Scopus | |
dc.subject | High-speed imaging | |
dc.subject | Shadow moiré | |
dc.subject | Surface contour | |
dc.subject | Temporal phase analysis | |
dc.type | Article | |
dc.contributor.department | MECHANICAL ENGINEERING | |
dc.description.doi | 10.1016/j.optcom.2003.11.035 | |
dc.description.sourcetitle | Optics Communications | |
dc.description.volume | 230 | |
dc.description.issue | 1-3 | |
dc.description.page | 23-33 | |
dc.description.coden | OPCOB | |
dc.identifier.isiut | 000187909400004 | |
Appears in Collections: | Staff Publications |
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