Regular Article
USE OF HOLOGRAPHIC INTERFEROMETRY AND ELECTRONIC SPECKLE PATTERN INTERFEROMETRY FOR MEASUREMENTS OF DYNAMIC DISPLACEMENTS

https://doi.org/10.1006/mssp.1999.1265Get rights and content

Abstract

The paper presents the use of Holographic Interferometry and Electronic Speckle Pattern Interferometry for the measurement of dynamic surface displacements. A concise theoretical background of the optical phenomena on which the two techniques are based is given. Analysis of holographic and speckle fringe patterns due to dynamic displacements is introduced as a generalisation of the case of fringe patterns due to static displacements. Experimental results obtained on a turbine blade, an aluminium panel and a microsatellite sandwich structure are reported.

References (13)

  • M. BORN et al.

    Principles of Optics

    (1970)
  • G. SAXBY

    Practical Holography

    (1994)
  • C.M. VEST

    Holographic Interferometry

    (1979)
  • K. CREATH

    Phase-measurement interferometry techniques

  • M.A. CAPONERO et al.

    Structural analysis of an aircraft turbine blade prototype by use of holographic interferometry

  • M.A. CAPONERO et al.

    Modal analysis by holographic interferometry of a turbine blade for a aircraft engine

There are more references available in the full text version of this article.

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