Determination of Flaws in an 81 Millimeter Projectile Body Using the TRW Acousto-Optical Imaging Device

Abstract

This report contains the results of a six month study designed to establish the applicability of the TRW Acousto-Optical System in depicting internal defects and surface flaws existing in an 81mm projectile body. An 81mm projectile body was furnished to TRW Systems which contained three known flaws. The known flaws consisted of two surface flaws on the outer surface of the shell and one crack in the inner wall. Acousto-optical images of these three flaws were obtained in the frequency range from 8 to 20 megacycles.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1970
Accession Number
AD0718046

Entities

People

  • Robert Aprahamian

Organizations

  • TRW Inc.

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Acoustic Waves
  • Acousto-Optic Modulators
  • Frequency
  • Lasers
  • Light Sources
  • Massachusetts
  • Materials
  • Materials Testing
  • Mechanical Properties
  • Mechanics
  • Nondestructive Testing
  • Optical Images
  • Refractive Index
  • Sound Waves
  • Transducers
  • United States

Fields of Study

  • Physics

Readers

  • Educational Psychology
  • Structural Dynamics.
  • ballistics.