| A Moored Underwater Energy Conservation System for Profiling Measurement |
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| 作者姓名： | 龚德俊 陈永华 李思忍 徐永平 姜静波 |
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| 作者单位： | Institute of Oceanology Chinese Academy of Sciences，Institute of Oceanology，Chinese Academy of Sciences，Institute of Oceanology，Chinese Academy of Sciences，Institute of Oceanology，Chinese Academy of Sciences，Institute of Oceanology，Chinese Academy of Sciences，Qingdao 266071，China，Qingdao 266071，China College of Mathematics and Physics，Qingdao University of Science and Technology，Qingdao 266042，China，Qingdao 266071，China，Qingdao 266071，China，Qingdao 266071，China |
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| 基金项目： | The project was financially supported by the High Tech Research and Development (863) Program (Grant No2005AA604220)，by a grant from China National Offshore Oil Corporation (Grant No051100036) |
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| 摘 要： | There is a need to obtain the hydrologic data including ocean current,wave,temperature and so on in the South China Sea.A new profiling instrument which does not suffer from the damage due to nature forces or incidents caused by passing ships,is under development to acquire data from this area.This device is based on a taut single point mid-water mooring system.It incorporates a small,instrumented vertically profiling float attached via an electromechanical cable to a winch integral with the main subsurface flotation.On a pre-set schedule,the instrument float with sensors is winched up to the surface if there is no ship passing by,which is defined by an on-board miniature sonar.And it can be immediately winched down to a certain depth if the sonar sensor finds something is coming.Since,because of logistics,the area can only be visited once for a long time and a minimum of 10 times per day profiles are desired,energy demands are severe.To respond to these concerns,the system has been designed to conserve a substantial portion of the potential energy lost during the ascent phase of each profile and subsequently use this energy to pull the instrument down.Compared with the previous single-point layered measuring mode,it is advanced and economica1.At last the paper introduces the test in the South China Sea.
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| 关 键 词： | 水下能量守恒系统 压型测量 水文资料 海底石油探测 |
| 修稿时间： | 2006-10-26 |
A Moored Underwater Energy Conservation System for Profiling Measurement |
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| GONG De-jun,CHEN Yong-hua,LI Si-ren,XU Yong-ping,JIANG Jing-bo.A Moored Underwater Energy Conservation System for Profiling Measurement[J].China Ocean Engineering,2007,21(3):541-548. |
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| Authors: | GONG De-jun CHEN Yong-hua LI Si-ren XU Yong-ping JIANG Jing-bo |
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| Institution: | 1.Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China ;2. College of Mathematics and Physics, Qingdao University of Scietwe and Technology, Qingdao 266042, China |
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| Abstract: | There is a need to obtain the hydrologic data including ocean current,wave,temperature and so on in the South China Sea.A new profiling instrument which does not suffer from the damage due to nature forces or incidents caused by passing ships,is under development to acquire data from this area.This device is based on a taut single point mid-water mooring system.It incorporates a small,instrumented vertically profiling float attached via an electromechanical cable to a winch integral with the main subsurface flotation.On a pre-set schedule,the instrument float with sensors is winched up to the surface if there is no ship passing by,which is defined by an on-board miniature sonar.And it can be immediately winched down to a certain depth if the sonar sensor finds something is coming.Since,because of logistics,the area can only be visited once for a long time and a minimum of 10 times per day profiles are desired,energy demands are severe.To respond to these concerns,the system has been designed to conserve a substantial portion of the potential energy lost during the ascent phase of each profile and subsequently use this energy to pull the instrument down.Compared with the previous single-point layered measuring mode,it is advanced and economica1.At last the paper introduces the test in the South China Sea. |
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| Keywords: | energy conservation profiling measurement hydrologic data moored underwater system security and continuity |
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