Intermodulation Interference (IMI) Testing of Composite Materials.

Abstract

With the possibility of the large scale use of graphite bearing composites for topside structures and masts, some concern has been expressed as to whether these materials might be intermodulation interference (IMI) generators. To resolve this question, tests were performed to compare the relative signal levels of intermodulation generated by two graphite loaded composite material samples to a steel sample and to a brass sample. The graphite loaded composite material samples are representative of the materials that will be used in the Advanced Enclosed Mast/Sensor (AEM/S) System. The results of these tests are evaluated in terms of the potential of graphite loaded composite structures to be significant generators of IMI on board Navy ships.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1994
Accession Number
ADA305288

Entities

People

  • J. C. Logan
  • J. H. Schukantz
  • J. W. Rockway
  • T. A. Danielson

Organizations

  • Naval Command, Control and Ocean Surveillance Center

Tags

Communities of Interest

  • Ground and Sea Platforms
  • Sensors

DTIC Thesaurus Topics

  • Automatic Gain Control
  • Biocomposites
  • Composite Materials
  • Composite Structures
  • Electron Tubes
  • Fibers
  • Frequency
  • Frequency Bands
  • Generators
  • Graphitic Materials
  • Intermodulation
  • Materials
  • Measurement
  • Ocean Surveillance
  • Signal Generators
  • Test Fixtures
  • Transmitters

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Naval Architecture and Marine Engineering.
  • Structural Health Monitoring of Composite Structures.