Electro-Optical Multichannel Sonar Recorder/Reproducer. Phase II.

Abstract

A study was conducted to establish the preliminary design of a low tape speed, highly durable, multichannel sonar-audio recorder/reproducer for U.S. Navy Sonarman training. Interim results by analysis and by laboratory experimentation on a partial model of the multichannel electro-optical recorder indicates thus far, that an operational model can be satisfactorily built. The unit records 16 audio channels on 1/4 inch wide photographic film. This is done by modulating light emitting diodes (LED's) with the signal to be recorded. Emitted light from the LEDs is guided onto the film by 0.003 to 0.010 inch diameter optical fiber light guides. Evidence from this study justifies a directed effort toward building a fully operational unit having 450 parallel channels, and a bandwidth of 10 Hz to 10 kHz. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 01, 1972
Accession Number
AD0743091

Entities

People

  • John C. Mckechnie

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Bandwidth
  • Buildings And Structures
  • Diameters
  • Diodes
  • Fibers
  • Light Emitting Diodes
  • Multichannel
  • Optical Fibers
  • Photographic Film
  • Recording Systems
  • Research Facilities
  • Training

Readers

  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Electronics Engineering
  • Optical Fiber Sensing and Electromagnetic Propagation.