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Proceedings Paper

Oblique-Optical-Axis Speckle Photography Used For Measuring 3-D Displacements Of Practical Engineering Structures
Author(s): He Yuming; Tan Yushan; Ku Chungshien
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Paper Abstract

In this paper a new technique for measuring 3-D displacements using oblique-optical-axis speckle photography (OSP) is introduced. The accuracy of seperating the out-of-plane displacement can be improved, and the visual field of the photographic lens can be utilized sufficiently when the OSP method is used. The experimental results of 3-D deformation of both the sample and the machine tool head stock are exemplified. Moreover, the Apple II microcomputer image processing system for fully auto-analysing the Young's fringe patterns is described principally. Lastly, by comparing the theoretical results with the experimental results, the OSP method and the image auto-processing system are satisfactory.

Paper Details

Date Published: 15 January 1988
PDF: 7 pages
Proc. SPIE 0673, Holography Applications, (15 January 1988); doi: 10.1117/12.939090
Show Author Affiliations
He Yuming, Xi'an Jiaotong University (China)
Tan Yushan, Xi'an Jiaotong University (China)
Ku Chungshien, Xi'an Jiaotong University (China)


Published in SPIE Proceedings Vol. 0673:
Holography Applications
Jingtang Ke; Ryszard J. Pryputniewicz, Editor(s)

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