Wideband acoustic absorption characteristics of rubberized coir for underwater applications

Pillai, PRSaseendran and Muralidhara, MK and Naidu, PS (1986) Wideband acoustic absorption characteristics of rubberized coir for underwater applications. In: Ultrasonics, 24 (6). 363 -367.

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Abstract

Reflection and transmission coefficients of rubberized coir pads over the frequency band 200 kHz to 4 MHz are presented in this Paper. These results are compared with those reported for neoprene, paraffin wax, rubber car mat and plastic door mat1. The rubberized coir pads were found to possess wideband absorption characteristics. It has been experimentally found that 0.05 m thick coir pads have almost 100% absorption in the frequency range 800 kHz-3 MHz with a maximum at 2.35 MHz. We have used this material for lining the water tank for underwater acoustic studies.

Item Type:	Journal Article
Publication:	Ultrasonics
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Keywords:	acoustic absorption;underwater acoustics;rubberized coir.
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	22 Jan 2010 10:06
Last Modified:	19 Sep 2010 05:34
URI:	http://eprints.iisc.ac.in/id/eprint/20787

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