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Experimental Mechanics

, Volume 18, Issue 6, pp 221–226 | Cite as

On the interpretation of shadow-moiré fringes

Influences of rotations and translations of the grating on the sensitivity are presented, general expressions are given and simplified equations are obtained for practical cases
  • J. Buitrago
  • A. J. Durelli
Article

Abstract

Shadow moiré is presented as one of the methods used to determine loci of constant height in curved surfaces (isotathmics). A general expression to interpret the fringes is derived taking into consideration possible rotations and translation of the grating. A discussion of the influence of such rotations and translation on the sensitivity of the response is also presented. Furthermore, simplified equations are obtained for particular cases of practical interest. An example of application to the case of an inverted perforated tube is shown.

Keywords

General Expression Mechanical Engineer Fluid Dynamics Curve Surface Practical Interest 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Society for Experimental Mechanics, Inc. 1978

Authors and Affiliations

  • J. Buitrago
    • 1
  • A. J. Durelli
    • 2
  1. 1.Catholic UniversityWashington, DC
  2. 2.Oakland UniversityRochester

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