Laser underwater acoustic detection technology based on vaporization mechanism

2019 ◽  
Author(s):  
he qiyi ◽  
Si-Guang Zong
Keyword(s):  
Acoustic Detection ◽  
Underwater Acoustic ◽  
Detection Technology

Fish Bioacoustics and Behavior: Passive Acoustic Detection and the Application of a Closed-Circuit Rebreather for Field Study

2001 ◽  
Vol 35 (2) ◽  
pp. 19-28 ◽  
Author(s):  
Phillip S. Lobel
Keyword(s):  
Behavioral Ecology ◽  
Daily Basis ◽  
Open Circuit ◽  
Acoustic Detection ◽  
Ecological Processes ◽  
Detection Technology ◽  
Scientific Goal ◽  
Species Specific ◽  
Passive Acoustic ◽  
And Behavior

The simple thesis of this paper is that using rebreathers to study fish behavioral ecology, especially bioacoustics, is well worth the expense and additional training required. The scientific goal of my bioacoustic research is to determine which fishes produce species-specific sound patterns exclusively with explicit acts of courtship and mating. This provides scientific insight into evolutionary and ecological processes and also provides data necessary to develop the passive acoustic detection technology for monitoring fish reproduction. When used on a daily basis, rebreathers, in my experience, are economical and as practical as open circuit scuba. This is based both on the costs of diving as well as the efficiency of gathering useful data. The use of open circuit SCUBA while conducting acoustic recordings results in a loss of at least 40% of the data due to the bubble noise from a divers breathing. Rebreathers also provide extended bottom time, especially in shallow water, which enhances a diver's ability to observe fish and gather acoustic-behavioral data.

Robust passive underwater acoustic detection method for propeller

2019 ◽  
Vol 148 ◽  
pp. 151-161 ◽  
Author(s):  
Yongxing Song ◽  
Jingting Liu ◽  
Linlin Cao ◽  
Ning Chu ◽  
Dazhuan Wu
Keyword(s):  
Detection Method ◽  
Acoustic Detection ◽  
Underwater Acoustic

Acoustic Detection Technology Based on Fiber Bragg Grating Fabry-Perot Interferometer in Liquid Medium

2013 ◽  
Vol 33 (9) ◽  
pp. 0906001 ◽  
Author(s):  
张伟超 Zhang Weichao ◽  
赵洪 Zhao Hong ◽  
刘通 Liu Tong ◽  
王国利 Wang Guoli ◽  
李锐海 Li Ruihai
Keyword(s):  
Liquid Medium ◽  
Fiber Bragg Grating ◽  
Bragg Grating ◽  
Acoustic Detection ◽  
Detection Technology ◽  
Fabry Perot
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