| Popis: |
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. |
