INVESTIGATION OF THE APPLICATION OF COHERENT ACOUSTIC IMAGING TO NONDESTRUCTIVE TESTING

Abstract

The purpose of this research program was to analyze and perform experimental demonstrations of the application of ultrasonic holographic and ultrasonic light diffraction techniques to the detection, analysis, and examination of the internal structure of optically opaque materials. During the period covered by this report, the electronic circuits for the ultrasonic camera were redesigned and the new hardware fabricated and tested. The revised system, described in detail in this report, has the inherent flexibility improved stability, and enhanced performance to permit the accurate generation of ultrasonic holograms. An elementary theory of the ultrasonic diffraction microscope is outlined in the report and some preliminary supporting experimental are described.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1970
Accession Number
AD0711085

Entities

People

  • Justin L. Kreuzer
  • Walter R. Arndt

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms

DTIC Thesaurus Topics

  • Acoustic Frequencies
  • Acoustics
  • Brushless Dc Motors
  • Carrier Frequencies
  • Diffraction
  • Electronic Circuits
  • Field Effect Transistors
  • Frequency
  • Geometry
  • Integrated Circuits
  • Lasers
  • Light Sources
  • Modulation
  • Repetition Rate
  • Scattering
  • Transducers
  • Waveforms

Fields of Study

  • Physics

Readers

  • Computer Science.
  • Optical Physics and Photonics.
  • Structural Health Monitoring of Composite Structures.

Technology Areas

  • Microelectronics
  • Microelectronics - Microelectromechanical Systems