电流(流体)
洋流
环境科学
电流表
海洋工程
信号(编程语言)
功率(物理)
直流电
工作(物理)
遥感
度量(数据仓库)
领域(数学)
质量(理念)
气象学
计算机科学
地质学
海洋学
物理
机械工程
工程类
程序设计语言
数学
量子力学
数据库
纯数学
作者
Keyu Zhou,Guangyuan Chen,Qisheng Zhang,Zucan Lin,Yunliang Liu,Xingyuan Jiang,Jinhang Zhang,Pengyu Li
标识
DOI:10.1088/1361-6501/accdf5
摘要
Abstract A common approach to ocean current measurement is to use a motion-induced electric field; this is the basic principle of the expendable current profiler (XCP). However, existing studies into XCPs have not explored indoor simulations of the ocean current environment or the implementation of attitude correction in the hardware. The accuracy of XCPs can be verified via indoor experiments and is affected by the sinking attitude. Therefore, in this study, we develop an XCP to measure ocean information in real time, and we correct the data for different XCP sinking attitudes. Furthermore, we design electromagnetic-induction-based laboratory measurements of simulated dynamic ocean currents. The signals collected by the XCP are linearly related to the copper-plated-power-supply signal. The processed data are compared and the feasibility of extracting ocean current signals via electrodes is verified through laboratory simulations of XCPs. Furthermore, we performed marine experiments in the South China Sea; the results indicate that the system is stable and easy to use. We implemented an expendable conductivity-temperature-depth system at the same location; the curve trends measured by the two probes were consistent, and the maximum error was found to be 0.5 °C. We expect this work to improve the quality of ocean current measurements and subsequent monitoring capabilities.
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