Vibration and Strain-Induced Noise from the ELF Flexible Loop Antenna

Abstract

Measurements have been made on a segment of the ELF flexible loop antenna to study its electrical sensitivity to vibration and strain. Transfer functions for the output voltage resulting from various types of vibration and strain were determined as functions of frequency, bias current, and orientation with respect to the gravitational field. Based on these laboratory measurements, it is tentatively concluded that the principle source of noise for the flexible loop antenna towed from a submarine is longitudinal strain.

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Document Details

Document Type
Technical Report
Publication Date
Dec 15, 1971
Accession Number
AD0737093

Entities

People

  • Jerome E. Manning

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Accelerometers
  • Amplifiers
  • Electronics Laboratories
  • Frequency
  • Gain
  • Gravitational Fields
  • Loop Antennas
  • Magnetic Fields
  • Measurement
  • Navy
  • Orientation (Direction)
  • Recording Systems
  • Sensitivity
  • Test Fixtures
  • Transfer Functions
  • Translations
  • Vibration

Fields of Study

  • Engineering

Readers

  • Acoustics.
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Mechanical Engineering/Mechanics of Materials.