Using a digital still camera for shearography: Preliminary experiments and observations

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We have used a simple digital still camera, instead of a conventional video-rate camera, to capture high-resolution images in a shearographic system. The high-resolution, compressed JPEG still images (of 18 megapixel resolution) are only generated by the camera on command from the controlling PC. We successfully generated shearograms from the still images, which are indicative of the applied stresses on the test object. The test object in this case is a center-loaded metal plate, fixed at the edges. The use of a digital still camera simplifies the electronic part of the shearographic system, and prevents the generation of unnecessary images. We propose to apply the system in several different applications.

Original languageEnglish
Title of host publicationOptomechanical Engineering 2019
EditorsKeith B. Doyle, Jonathan D. Ellis
PublisherSPIE
ISBN (Electronic)9781510628939
DOIs
Publication statusPublished - 2019
EventOptomechanical Engineering 2019 - San Diego, United States
Duration: Aug 14 2019 → …

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11100
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceOptomechanical Engineering 2019
Country/TerritoryUnited States
CitySan Diego
Period8/14/19 → …

Keywords

  • Center-loaded plate
  • Compressed JPEG images
  • Digital still camera
  • Shearography

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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