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Reconstructing a shadow pattern image of the internal surface of a small hole and estimating surface roughness from the image
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UNSPECIFIED (1997) Reconstructing a shadow pattern image of the internal surface of a small hole and estimating surface roughness from the image. OPTICAL ENGINEERING, 36 (8). pp. 2210-2215. ISSN 0091-3286.
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Abstract
A non-destructive method used to estimate internal surface roughness of a small hole (0.2 mm in diameter and 0.7 mm in depth) is described. The first step of this method is to reconstruct a shadow pattern image of the internal surface from a series of optically sectioned images of the surface. The surface roughness parameters are then calculated from this shadow pattern image. The method is verified by measuring a known flat surface and comparing the results with stylus measurements. (C) 1997 Society of Photo-Optical Instrumentation Engineers.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics | ||||
Journal or Publication Title: | OPTICAL ENGINEERING | ||||
Publisher: | SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS | ||||
ISSN: | 0091-3286 | ||||
Official Date: | August 1997 | ||||
Dates: |
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Volume: | 36 | ||||
Number: | 8 | ||||
Number of Pages: | 6 | ||||
Page Range: | pp. 2210-2215 | ||||
Publication Status: | Published |
Data sourced from Thomson Reuters' Web of Knowledge
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