Research on the coefficient of sound absorption in turbid water

• Published in: Journal of marine science and application Vol. 7; no. 2; pp. 135 - 138
• Main Author: 刘永伟 李琪
• Format: Journal Article
• Language: English
• Published: Heidelberg Harbin Engineering University 01.06.2008; College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, China
• Subjects: Aluminum; Coastal water; Coefficients; Electrical Machines and Networks; Engineering; Geotechnical Engineering & Applied Earth Sciences; Law; Machinery and Machine Elements; Marine; Mathematical analysis; Offshore Engineering; Power Electronics; Reverberation time; Sea beds; Sound; 交混回响时间; 声音吸收; 混浊水; China, People's Rep; sound absorption; turbid water; reverberation time; TB566
• ISSN: 1671-9433; 1993-5048
• DOI: 10.1007/s11804-008-7036-6

China’s coastal waters are turbid and the properties of the seabed are complex. This negatively impacts the performance of underwater detection equipment. The properties of sound absorption in turbid water are not well understood. In this paper, the coefficient of sound absorption in turbid water was measured by the reverberation technique. All work was done in a reverberation barrel made of seamless aluminum. First, pure water was poured into the reverberation barrel and its reverberation time measured. Next, various concentrations of turbid water were poured into the barrel and their reverberation time measured. After all data had been gathered, the coefficient of sound absorption in turbid water of different concentrations was calculated. From this we determined a law of sound absorption in turbid water as summarized in the paper.