摘要
为掌握舰船外加电流阴极保护系统滤波不良引起的工频电场在浅海环境中的分布特征,采用三层媒质中的水平时谐电流元对其进行建模,并仿真分析了其在水下的近场空间分布特征.设计了一个在实验室条件下的工频电场测试方案,通过实验进一步研究其特性,并将实测值与仿真结果进行对比分析.研究结果表明:可利用水平时谐电流元对工频及其倍频电场进行建模,且在近场条件下工频电场通过特性明显,强度在可探测范围内,有可能成为一种新的目标信号.
In order to grasp the space distribution characteristics in shallow sea of the power frequency alternating electric field caused by impressed current cathodic protection system of ship, a time-har- monic electric current element located in three-layer conductive media space was adopted to simulate the fields. The simulation analysis was carried out and proved by experiments. The research results show that the horizontal time-harmonic electric current element can be used to model the power fre- quency electric field, and the through characteristic of which is obvious and its intensity is on the range of detection. The power frequency electric field may become a new target signal.
出处
《华中科技大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2017年第4期57-60,67,共5页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金
国家自然科学基金资助项目(51109215)
海军工程大学理学院基础研究基金资助项目(HJGSK2014G128)
关键词
舰船
外加电流阴极保护系统
工频电场
水平时谐电流元
三层媒质
ship
impressed current cathodic protection system
power frequency electric field
hori- zontal time-harmonic electric current element
three-layer medium
