Accession Number:

AD1003730

Title:

Acoustic Properties of Sonar Dome Materials

Descriptive Note:

Technical Report

Corporate Author:

Defense Research Establishment Atlantic (DREA) Halifax, Nova Scotia Canada

Personal Author(s):

• Guigne,Jacques Y.
• Liu,Quanshun
• Szabo,Jeff P.

Report Date:

1995-05-30

Pagination or Media Count:

25.0

Abstract:

As part of a development project sponsored by DRDM and DMCS on Spectra Fiber composite sonar domes, DREA has been tasked to provide data on the acoustic properties of glass and Spectra Fiber based composite panels in a 2- 10kHz range. The low frequency and high level of accuracy desired presented a number of challenges for carrying out insertion loss measurements. This paper introduces the use of parametric arrays to generate broad frequency responses off sonar dome materials. Particular attention is placed on the generation of low kHz signals in a laboratory limited tank setting and the resultant measurements produced.

Descriptors:

• sonar domes
• acoustic properties
• GLASS FIBER REINFORCED PLASTICS
• FIBER REINFORCED COMPOSITES

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE