基于水体导电特性的电流信号传输研究  

Research on current signal transmission based on water conductivity characteristics

作　　者：李盛洪 金建辉[1] 汪洋 LI Shenghong;JIN Jianhui;WANG Yang(Faculty of Information Engineering and Automation,Kunming University of Science and Technology,Kunming 650504,China;China State Shipbuilding Corporation 705 Research Institute,Kunming 650032,China)

机构地区：[1]昆明理工大学信息工程与自动化学院,云南昆明650504 [2]中国船舶集团有限公司第七〇五研究所,云南昆明650032

出　　处：《陕西理工大学学报（自然科学版）》2023年第5期20-29,共10页Journal of Shaanxi University of Technology:Natural Science Edition

基　　金：国家自然科学基金项目(61364008)。

摘　　要：水体作为电流通信回路中一条支路的潜在应用非常广泛,而水体环境非常复杂,对水体导电特性又偏向于应用研究,基础理论研究较少,因此分析水体导电特性是当前亟需解决的问题。针对此问题,基于黑箱理论和有限元仿真软件COMSOL对水体进行建模分析,提出了一种基于集总参数的等效模型,并且得到了一个相对简化的水体导电特性公式。通过对仿真与实测数据对比分析,得到电流信号的传输频率、极板距离、极板面积等参数与信号传输的关系。结果表明:传输信号的衰减与电流信号的频率呈负相关,与极板距离呈正相关,与极板面积呈负相关;通过增大传输信号的频率,减小极板距离,增大极板面积均有利于电流信号的可靠传输。研究结果可为水体作为电流通信回路中一条支路的应用提供理论依据。The potential application of water body as a branch of current communication loop is very extensive,but the water body environment is very complex,and the basic theoretical research on water conductivity characteristics is less,which is biased to application research.Therefore,the analysis of water conductivity characteristics is an urgent problem to be solved at present.To solve this problem,based on black box theory,the water body was modeled and analyzed by finite element simulation software COMSOL,and an equivalent model based on lumped parameters was proposed,and a relatively simplified formula for water conductivity was obtained.By comparing the simulation data with the measured data,the relationship between the current signal transmission frequency,plate distance,plate area and signal transmission was obtained.The results show that the attenuation of the transmitted signal is negatively correlated with the frequency of the current signal,positively correlated with the distance of the plate,and negatively correlated with the plate area.The reliable transmission of current signal can be achieved by increasing the frequency of transmission signal,decreasing the distance of plate and increasing the area of plate.The results can provide a theoretical basis for the application of water body as a branch of current communication circuit.

关 键 词：水体导电特性 水体电流通信 黑箱理论 有限元仿真分析 集总参数 信号传输 

分 类 号：TM13[电气工程—电工理论与新技术] TN913.3[电子电信—通信与信息系统]