国防科技大学学报2018，Vol.40Issue(3)：82-87,6.DOI:10.11887/j.cn.201803013
浅海中时谐水平电偶极子在空气中的极低频磁场
Extremely low frequency magnetic fields in air produced by time-harmonic horizontal electric dipole in shallow sea
摘要
Abstract
In order to analyze the ELF( extremely low frequency) magnetic field of ships, the corrosion related current modulated by the ship shaft was equivalent to a time-harmonic HED ( horizontal electric dipole ).Based on Maxwell′s equations and boundary conditions of electromagnetic field, the magnetic vector potential in air was modeled, and then the magnetic field expressions of the HED were deduced.The propagation character of the magnetic field was calculated by fast Hankel transform.The magnetic field of carbon electrodes in the pool and Ti-based electrodes at sea were measured.Result shows the practicality of the magnetic field and the validity of the model.关键词
极低频磁场/时谐水平电偶极子/矢量磁位/航空磁探Key words
extremely low frequency magnetic field/time-harmonic horizontal electric dipole/magnetic vector potential/aerial magnetic detection分类
信息技术与安全科学引用本文复制引用
孙玉绘,林春生,吴海兵,翟国君..浅海中时谐水平电偶极子在空气中的极低频磁场[J].国防科技大学学报,2018,40(3):82-87,6.基金项目
国家自然科学基金资助项目(41374018,41476087) （41374018,41476087）
国家重大科研装备研制资助项目(ZDYZ2012-1) （ZDYZ2012-1）
