SOUND ABSORPTION TESTS ON POLYURETHANE AND LIQUID SOAP FOAMS FOR ANECHOIC ENCLOSURES

Abstract

An investigation was made of the normal and random incidence absorption of samples of 2-in thick polyurethane foam selected for use in the construction of an anechoic enclosure for lifting-fan noise studies.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1969
Accession Number
AD0687919

Entities

People

  • G. A. Macaulay
  • G. G. Levy
  • G. Krishnappa

Organizations

  • National Research Council Canada

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms

DTIC Thesaurus Topics

  • Absorption
  • Absorption Coefficients
  • Acoustic Absorption
  • Anechoic Chambers
  • Coefficients
  • Diffraction
  • Frequency
  • Frequency Analyzers
  • Impedance
  • Materials
  • Measurement
  • Polyurethanes
  • Sound Pressure
  • Standing Waves
  • Test Facilities
  • Test Methods
  • Waves

Fields of Study

  • Engineering
  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Polymer Science and Engineering.