In-Plane Moire Optical Processing at ARL (Aeronautical Research Laboratories)

Abstract

The principle and operation of the in-plane moire optical processor are described in detail. The processor uses extensive spatial filtering to produce dual-beam interference moire fringes of high contrast. Fringe patterns obtained from a J-integral specimen and a cold-worked bolt hole specimen are shown. They compare well with displacement contour patterns obtained from a theoretical analysis and strain gauge data.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1987
Accession Number
ADA198343

Entities

People

  • K. C. Watters

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Aluminum Alloys
  • Cameras
  • Cold Working
  • Coordinate Systems
  • Engineering
  • Focal Planes
  • Frequency
  • Gratings (Spectra)
  • Grids
  • Interferometry
  • J Integrals
  • Materials
  • Mechanics
  • Optical Processing
  • Photographs
  • Photography

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.
  • Radar Systems Engineering.
  • Structural Health Monitoring of Composite Structures.