A Seawater Conductivity Measurement Method Based on Magnetic Resonance Coupling

IF 1.6 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Instrumentation & Measurement Magazine Pub Date : 2023-02-01 DOI:10.1109/MIM.2023.10034965

N. Liu, Yuanjie Miao, Tao Wang, Yuhua Wu, Jianrui Zhao

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Abstract

This paper proposes a magnetic resonance coupling seawater conductivity measurement method with a dual-coil structure. The passive transceiver coil is composed of two detection coils and capacitive elements placed in seawater. The seawater conductivity measurement is realized by analyzing the relationship between the transmission loss of the resonant magnetic field between the passive transceiver coils in the seawater and the seawater conductivity. In the article, the magnetic resonance coupling measurement method is established and analyzed, the circuit model of the magnetic resonance coupling measurement system transmitted in seawater is established, the experimental device is set up for laboratory testing, and the corresponding test situation is simulated by finite element electromagnetic modelling. The test and simulation results show that the measurement method is feasible; the system has the best performance at the resonant frequency, especially for low-conductivity conditions, and better sensitivity. In addition, the resonant frequency increases, and the conductivity resolution of the measurement system for seawater increases.

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一种基于磁共振耦合的海水电导率测量方法

本文提出了一种双线圈结构的磁共振耦合海水电导率测量方法。无源收发器线圈由两个检测线圈和放置在海水中的电容元件组成。海水电导率测量是通过分析海水中无源收发器线圈之间的谐振磁场的传输损耗与海水电导率之间的关系来实现的。本文建立并分析了磁共振耦合测量方法，建立了在海水中传输的磁共振耦合测试系统的电路模型，搭建了实验室测试的实验装置，并通过有限元电磁建模模拟了相应的测试情况。试验和仿真结果表明，该测量方法是可行的；该系统在谐振频率下具有最佳性能，尤其是在低电导率条件下，并且具有更好的灵敏度。此外，谐振频率增加，海水测量系统的电导率分辨率增加。

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来源期刊

IEEE Instrumentation & Measurement Magazine 工程技术-工程：电子与电气

CiteScore

4.20

自引率

4.80%

发文量

147

审稿时长

>12 weeks

期刊介绍： IEEE Instrumentation & Measurement Magazine is a bimonthly publication. It publishes in February, April, June, August, October, and December of each year. The magazine covers a wide variety of topics in instrumentation, measurement, and systems that measure or instrument equipment or other systems. The magazine has the goal of providing readable introductions and overviews of technology in instrumentation and measurement to a wide engineering audience. It does this through articles, tutorials, columns, and departments. Its goal is to cross disciplines to encourage further research and development in instrumentation and measurement.