Interferometric Surface Distortion Detector.

Abstract

Portable shadow moire apparatus is disclosed for indiscriminately manipulating the grid and light source thereof over a specimen surface, with the grid oriented substantially in parallel therewith and in close proximity thereto. Self aligning support is provided on such apparatus, along with height adjustability for that support. Utilization of very high density grids is made possible by such apparatus to enhance the detection sensitivity thereof. Light source direction variability is also provided to control the magnitude of detectable distortion. Patent applications. (JHD)

Document Details

Document Type
Technical Report
Publication Date
Apr 20, 1989
Accession Number
ADD014211

Entities

People

  • Armando J. Gaetano
  • Arthur E. Scotese
  • Shih L. Huang

Organizations

  • United States Department of the Navy

Tags

DTIC Thesaurus Topics

  • Detection
  • Detectors
  • Distortion
  • High Density
  • Light Sources
  • Patent Applications
  • Patents
  • Sensitivity

Fields of Study

  • Physics

Readers

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