Changes in Ultrasonic Pulse Shapes Due to Nonlinear Processes

Abstract

Acoustooptic interaction theory is applied to ultrasonic pulses in order to determine pulse parameters from the light diffraction pattern produced by the pulses. Experiments are described to show how pulse shapes change when propagation is in a nonlinear liquid. It is shown that pure electronic determinations of pulse shapes do not describe all the changes accurately whenever the probe response is not known exactly. Use of present method is able to eliminate this problem. Examples of pulse propagation as investigated by acoustooptic method are given and evaluated. Keywords: Ultrasonic pulses; Acoustooptics; Nonlinearities reflection.

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Document Details

Document Type
Technical Report
Publication Date
Jul 31, 1988
Accession Number
ADA198274

Entities

People

  • Jean Wolf
  • T. D. Ngoc
  • Walter G. Mayer

Organizations

  • Georgetown University

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms
  • Space

DTIC Thesaurus Topics

  • Acoustic Frequencies
  • Acoustic Waves
  • Acoustics
  • Acquisition
  • Birds
  • Computers
  • Data Acquisition
  • Detectors
  • Diffraction
  • Group Velocity
  • Optical Detectors
  • Phase Velocity
  • Pulse Amplitude
  • Pulse Modulation
  • Repetition Rate
  • Ultrasounds
  • Wave Propagation

Fields of Study

  • Physics

Readers

  • Aerosol Science/Aerosol Physics
  • Plasma Physics / Magnetohydrodynamics
  • Radar Systems Engineering.

Technology Areas

  • Microelectronics