Increased Effective Aperture for Receive Arrays

Abstract

A sonar dome having an acoustic array housed therein. A plurality of bubbles are generated within the fluid inside the sonar dome. The generated bubbles are of an amount and size to reduce the speed of sound within the sonar dome fluid. Reduction of the speed of sound within the sonar dome fluid effectively increases the aperture of the acoustic array. The bubbles can be generated from a gas source or electrolytically. Typically, each individual bubble is less than 0.01 mm in diameter to reduce bubble velocity in the fluid.

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Document Details

Document Type
Technical Report
Publication Date
Aug 24, 2005
Accession Number
ADD020315

Entities

People

  • Anthony A. Ruffa

Organizations

  • United States Department of the Navy

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Acoustic Arrays
  • Acoustic Equipment
  • Arrays
  • Bandwidth
  • Bubbles
  • Diameters
  • Fluids
  • Frequency
  • Gases
  • Inventions
  • Patents
  • Sonar Arrays
  • Sonar Domes
  • Sound Pressure
  • Technology Transfer
  • Undersea Warfare
  • Water

Readers

  • Acoustics.
  • Electrical Engineering
  • Oceanography.