EXPERIMENTS FOR THE MEASUREMENT OF THE ACOUSTIC IMPEDANCE OF A BURNING SOLID PROPELLANT

Abstract

The report describes the progress made during a research program to measure the acoustic impedance of a burning solid propellant. The acoustic impedance of acoustical materials can be determined with the present instrumentation. Data obtained using the Elkton test chamber are compared with typical data obtained from the literature. Variations due to mounting and thickness of test specimens are discussed. Details of the microphone and sound driver performance are presented. Linearity tests of the equipment have indicated possible operational problems which must be checked further. A supplementary bibliography of applicable references is included as an appendix to the report.

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Document Details

Document Type
Technical Report
Publication Date
Mar 19, 1962
Accession Number
AD0610260

Entities

People

  • Alvin O. Converse
  • Edward S. Stern
  • James R. Woodyard

Tags

Communities of Interest

  • Advanced Electronics
  • Weapons Technologies

DTIC Thesaurus Topics

  • Absorption Coefficients
  • Acoustic Impedance
  • Acoustic Propagation
  • Acoustic Waves
  • Acoustics
  • Combustion
  • Composite Propellants
  • Frequency
  • Impedance
  • Inert Materials
  • Jet Propulsion
  • Materials Laboratories
  • Materials Testing
  • Measurement
  • Propellants
  • Solid Propellants
  • Waveforms

Fields of Study

  • Physics

Readers

  • Acoustics.
  • Aerospace Test and Evaluation
  • Rocket Propulsion.