Microwave Instrumentation for Multifrequency Attenuation Measurements Through Propellant Gases

Abstract

In studying electromagnetic propagation through the exhaust flames of reaction motors, the need of improved instrumentation for determining the loss of energy in the flame was recognized. A system utilizing pulsed electro-magnetic energy at S-, X-, and K-Band frequencies on a time-sharing basis has been constructed and used in the field to make such measurements. Lens antennas were used to focus the energy within the flames and a traveling frame provided a means of exploring the length of the flame. Data was recorded on film at the rate of 32 readings per second for each frequency. This system Is here described; the measurements obtained will be given In a later report.

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Document Details

Document Type
Technical Report
Publication Date
Feb 13, 1952
Accession Number
ADA456637

Entities

People

  • G. D. Morehouse
  • James M. Headrick
  • W. W. Balwanz

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Attenuation
  • Cathode Followers
  • Cathode Ray Tubes
  • Electromagnetic Radiation
  • Electronic Equipment
  • Frequency
  • Instrumentation
  • K Band
  • Losses
  • Measurement
  • Microwave Frequency
  • Microwaves
  • Radio Frequency
  • Repetition Rate
  • Resonant Circuits
  • Rocket Engines
  • Wave Propagation

Fields of Study

  • Physics

Readers

  • Electronics Engineering
  • Radar Systems Engineering.
  • Rocket Propulsion.