LRAPP Vertical Array. Phase II

Abstract

A vertical array of six hydrophones on a 13,050 ft. cable was built for measuring noise in the ocean over the frequency band from 10 Hz to 300 Hz. The hydrophones have a high sensitivity to acoustic signals. They have a low self noise and a low sensitivity to acceleration. The small size and ruggedness of the connector hydrophone makes it practical to wind the entire array onto a drum so that it can be deployed and retrieved with a minimum amount of handling. Special watertight connectors were designed that fit inside a pair of split cylinders which mechanically couple each hydrophone to the cable sections. This permits the replacement of a hydrophone simply by uncoupling the split couplers, unplugging the old hydrophone and plugging in the new hydrophone.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jun 13, 1973
Accession Number
AD0786239

Entities

People

  • C. H. Jones

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Sensors

DTIC Thesaurus Topics

  • Acoustic Properties
  • Acoustics
  • Ambient Noise
  • Amplifiers
  • Assembly
  • Circuits
  • Frequency
  • Impedance
  • Plastic Explosives
  • Power Amplifiers
  • Power Converters
  • Recording Systems
  • Resistance
  • Self Noise
  • Terminals
  • Transducers
  • Wiring Diagrams

Readers

  • Acoustical Oceanography.
  • Electrical Engineering