A Towable, Moving-Coil Acoustic Target for Low Frequency Array Calibration.

Abstract

A towable, low frequency sound source that employs a moving-coil transducer is described. The unit, which consists of a surplus torpedo hull and a specially designed low frequency, broadband transducer, was designed and developed at NUSC's Ft. Lauderdale Detachment. Innovations over previous moving-coil units include design improvements for better heat dissipation, increased moving-coil copper density, more rugged construction, and a stiffer laminated stainless steel and epoxy piston dome. The complete unit is the largest of its kind and produces some pressure levels in the order of 180 dB/micro/Pa in the 10 to 1000 Hz frequency region. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Apr 29, 1981
Accession Number
ADA099782

Entities

People

  • Bernard S. Willard

Organizations

  • Naval Underwater Systems Center

Tags

Communities of Interest

  • Energy and Power Technologies
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acoustic Measurement
  • Assembly
  • Barometric Pressure
  • Composite Materials
  • Failure Mode And Effect Analysis
  • Flux Density
  • Frequency
  • Frequency Bands
  • Heat Transfer
  • Magnetic Flux Density
  • Magnetic Materials
  • Materials
  • Regulators
  • Resistance
  • Sound Pressure
  • Stainless Steel
  • Transducers

Fields of Study

  • Physics

Readers

  • Acoustical Oceanography.
  • Geodesy
  • Maritime and Naval Warfare Studies