Acoustic Measurements on Goodyear Rubber Panels.

Abstract

Insertion loss were measured in the frequency range 1 to 100 kHz under ambient conditions in the lake and in the range 50 to 200 kHz in the highfrequency tank. 'Insertion loss' is defined as 20 log (incident sound pressure/transmitted sound pressure). The decibel values on the drawings are, therefore, positive. Except for the butyl panel, the loss was less than 0.2 dB at frequencies below 50 kHz. This is the minimum detectable loss, as imposed by the boundary conditions, the size of the panel, and the test facilities. The results of the measurements are shown on the drawings of enclosure (1).

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1967
Accession Number
ADA066771

Entities

Organizations

  • United States Naval Research Laboratory

Tags

DTIC Thesaurus Topics

  • Accuracy
  • Acoustic Measurement
  • Frequency
  • Insertion Loss
  • Losses
  • Measurement
  • Military Research
  • Phase Shift
  • Rdx
  • Research Facilities
  • Sound Pressure
  • Test Facilities
  • Underwater Sound

Readers

  • Acoustical Oceanography.
  • Mathematics or Statistics
  • Software Engineering