An Experiment on Reduction of Infrasonic Underwater Self-Noise

被引：0
作者：
Lee, Seongwook
Lee, Yong-Kuk
Kim, Seong-Ryul
机构：
来源：
JOURNAL OF THE ACOUSTICAL SOCIETY OF KOREA | 2011年 / 30卷 / 01期
关键词：
Underwater Flow; Self-Noise Reduction; Infrasonic Band; Open-Cell Foam;
D O I：
10.7776/ASK2011.30.1.017
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
The effects of screening hydrophones with open-cell foams for reduction of the infrasonic self-noise induced by the flow around hydrophones are investigated by at-sea experiment. Test results of the 10 ppi polyurethane open-cell foams with different thickness show that the foams of 1 cm and 3 cm thickness reduce the flow-induced self-noises up to 20 dB and 28 dB at the frequency band of 2-10 Hz, respectively.
引用
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页码：17 / 21
页数：5
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