Acoustical Properties of the MOD Salisbury Test Tank and Techniques for Measurements,
Abstract
The acoustical properties of the MOD test tank at DSTO Salisbury were determined, so that the limitations on its use for precise acoustical measurements might be known. The tank properties were measured according to the characterisation usually applied to air-filled reverberant chambers. The measurement of these properties is described, together with a summary of relevant sections of reverberant chamber theory, as re-applied to a water-filled tank. Techniques for using the tank for determining the acoustical power output and directivity of sound sources are described, from both a theoretical and a practical viewpoint. Particular attention is given to the complicating effects of spatial and spectral variability, and a description is given of the means of accounting for these effects. Methods for improving the tank properties are discussed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1996
- Accession Number
- ADA311918
Entities
People
- Adrian D. Jones
- Stephen A. Hoefs
Organizations
- Defence Science and Technology Group