Please use this identifier to cite or link to this item: https://doi.org/10.1117/1.1589025
Title: Phase-shifting photoelasticity using a flatbed scanner
Authors: Ng, T.W. 
Quek, P.K.
Lim, K.H.
Keywords: Birefringence
Flatbed scanner
Phase shift
Photoelasticity
Issue Date: Aug-2003
Source: Ng, T.W., Quek, P.K., Lim, K.H. (2003-08). Phase-shifting photoelasticity using a flatbed scanner. Optical Engineering 42 (8) : 2375-2379. ScholarBank@NUS Repository. https://doi.org/10.1117/1.1589025
Abstract: We investigate the use of flatbed scanners for photoelasticity. It is found that performing phase shift on red, green, and blue component images extracted from fringe images scanned in white light can produce whole-field phase maps, though low levels of error can only be achieved using red and green component images. Results from a circular photoelastic disk subjected to direct compressive loading show close correspondence with the results from theoretical calculations. The adaptation of photoelasticity into flatbed scanners will yield systems that are simple, cost effective, and compact. These features and the demonstrated ability for automatic analysis using phase shifting should encourage a greater adoption of photoelasticity in the industry.
Source Title: Optical Engineering
URI: http://scholarbank.nus.edu.sg/handle/10635/67792
ISSN: 00913286
DOI: 10.1117/1.1589025
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