Synthesis of Holographic Interferometry and Speckle Photography to Measure 3-D Displacements.

Abstract

Double-exposure "image-plane" holograms made with a reference to object intensity ratio less than unity can be used to measure three dimensional displacements on nearly planar subjects. Holographic interferometry is used to determine the normal displacement component. Speckle photographic techniques are employed to obtain the in-plane components.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1973
Accession Number
ADA370606

Entities

People

  • Frank D. Adams
  • Gene E. Maddux

Organizations

  • Flight Dynamics Laboratory

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Data Reduction
  • Diffraction
  • Displacement
  • Holograms
  • Holography
  • Images
  • Interferometry
  • Laser Beams
  • Lasers
  • Photographic Images
  • Photographic Plates
  • Photography
  • Planar Structures
  • Structural Analysis
  • Three Dimensional

Fields of Study

  • Physics

Readers

  • Image Processing and Computer Vision.
  • Structural Health Monitoring of Composite Structures.