A Holographic and Acoustical Investigation of a Plate Vibrating Underwater

Abstract

An elaborate experiment was undertaken to determine the interrelationships between dynamic surface deformation (whose data were obtained through optical interferometric holography) and the resulting radiated acoustic pressure pattern. Following analytical derivations and the development of a suitable algorithm, it was concluded that one hologram, by itself, does not contain sufficient information to make accurate predictions of acoustic patterns. Suggestions are made regarding follow-up investigations for the determination of the gradient of the surface deformation.

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Document Details

Document Type
Technical Report
Publication Date
Oct 24, 1972
Accession Number
AD0755475

Entities

People

  • Rudolph E. Croteau Jr.

Organizations

  • Naval Underwater Systems Center

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acoustic Measurement
  • Acoustic Waves
  • Acoustics
  • Bending Stress
  • Computer Programming
  • Computer Programs
  • Diffraction
  • Far Field
  • Measurement
  • Modulus Of Elasticity
  • Pressure Measurement
  • Repetition Rate
  • Resonant Circuits
  • Resonant Frequency
  • Standing Waves
  • Transducers
  • Yield Strength

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.
  • Systems Analysis and Design
  • Wave Propagation and Nonlinear Chaotic Dynamics.