Journal of Tropical Oceanography >
Development and application of chemical sensor for hydrothermal vents detection
Received date: 2017-06-27
Request revised date: 2017-09-13
Online published: 2018-05-03
Supported by
State Oceanic Administration Key Laboratory of Marine Ecosystems and Biogeochemistry Open Research Fund (LMEB201701)
Copyright
The water around submarine hydrothermal vents has significant turbidity and chemical composition anomalies, providing an important indicator for finding hydrothermal vents. In this paper, a detection method of submarine hydrothermal vents was proposed, and a low-power chemical sensor hydrothermal detection system was designed. The chemical sensor can detect real-time potential values of pH, H2S, Eh, and CO32- when mounted on the relevant detection platform. Combined with abnormal turbidity, we can infer the location of hydrothermal vents. The results of the testing in the Southwest Indian Ridge showed that the chemical sensor can effectively detect chemical abnormalities caused by hydrothermal activity, which is an effective technique for detecting hydrothermal vents.
QIN Huawei , TAO Zhuo , LI Huaiming , YUE Xihe , CAI Zhen , CHEN Sheng , ZHOU Hongwei , YE Ying . Development and application of chemical sensor for hydrothermal vents detection[J]. Journal of Tropical Oceanography, 2018 , 37(3) : 86 -92 . DOI: 10.11978/2017072
Fig. 1 Chemical sensor outline (a) and its internal structure (b)图1 化学传感器外形(a)及内部结构(b) |
Fig. 2 Data collection system图2 数据采集系统 |
Fig. 3 Flow chart of the software system图3 系统软件流程图 |
Fig. 4 Device software and hardware testing图4 设备软件及硬件测试 |
Fig. 5 Chemical sensor work diagram图5 化学传感器工作示意图 |
Tab. 1 Chemical sensor operation statistics表1 化学传感器作业情况统计表 |
航次 和航段 | 参加 测线数 | 有效 测线数 | 发现明显或可能 热液异常的测线数 |
---|---|---|---|
43Ⅲ | 11 | 10 | 2 |
43Ⅳ | 18 | 17 | 3 |
Fig. 6 Voltage changes of Eh, H2S, pH, and CO32- with time图6 Eh、H2S、pH及CO32-电位随时间变化图 |
Fig. 7 Snapshot of chemical abnormalities图7 化学量异常局部图 |
Fig. 8 Eh and turbidity changes with depth图8 氧化还原电位梯度ΔEh及浊度随深度变化图 |
Fig. 9 Snapshot of abnormal turbidity图9 浊度异常局部图 |
The authors have declared that no competing interests exist.
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