Experimental Mechanics

, Volume 21, Issue 11, pp 436–440 | Cite as

A simple tool for speckle-shearing interferometry

A common glass plate is shown to be a very simple alternative tool to obtain speckle correlation fringes related directly to derivatives of displacement
  • Y. J. Chao
  • M. A. Sutton
  • C. E. Taylor


A common glass plate has been shown to be an adaptable and effective tool for use in speckle-shearing interferometry. Analyses of both the imaging system and the optical-filtering arrangement have been developed. Experiments were performed successfully. The results of these experiments have shown that visible speckle correlation fringes related to the derivatives of surface displacement are obtained when a common glass plate is used as a shearing component.


Mechanical Engineer Fluid Dynamics Imaging System Glass Plate Surface Displacement 
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Copyright information

© Society for Experimental Mechanics, Inc. 1981

Authors and Affiliations

  • Y. J. Chao
    • 1
  • M. A. Sutton
    • 1
  • C. E. Taylor
  1. 1.Department of Theoretical and Applied MechanicsUniversity of IllinoisUrbana

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