Full Field Visualization of Surface and Bulk Acoustic Waves

Abstract

The objective of this research was to apply optical holographic techniques coupled with electronic signal and image processing to provide quantitative, full field measurements of acoustic wave disturbances. High speed pulsed holographic methods were developed to permit visualization of transient acoustic wave fields on the surfaces of solids and plates. In addition, it was possible to produce tomographic displays of acoustic energy flow in optically transparent fluids and solids. Special adaptations for heterodyne analysis made it possible to extract data from the holographic interferograms with sensitivities 900 times greater than conventional visual analysis. (jhd)

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1990
Accession Number
ADA227676

Entities

People

  • James W. Wagner
  • Robert E. Green Jr.

Organizations

  • Johns Hopkins University

Tags

Communities of Interest

  • Biomedical
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Waves
  • Advanced Materials
  • Composite Materials
  • Detectors
  • Elastic Properties
  • Elastic Waves
  • Explosives
  • Geometry
  • High Resolution
  • Holograms
  • Image Processing
  • Interferograms
  • Laser Beams
  • Materials Science
  • Surface Acoustic Waves
  • Three Dimensional
  • Wave Propagation

Fields of Study

  • Physics

Readers

  • Image Processing and Computer Vision.
  • Marine Mammal Biology
  • Optical Physics and Photonics.

Technology Areas

  • Microelectronics