Absolute and comparative measurements of three-dimensional shape by phase measuring moiré topography |
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| Authors: | G T Reid R C Rixon H I Messer |
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| Institution: | The authors are at the National Engineering Laboratory, East Kilbride, Glasgow G75 0QU, UK |
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| Abstract: | We describe a phase-measuring version of projection moiré topography which allows fully automatic on-line analysis of moiré fringe contour patterns. The technique can be used for both absolute and comparative measurements of surface form and an example of each type of measurement is presented. |
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| Keywords: | non-destructive testing moiré fringes phase measurement |
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