摘要
为了使舰船轴频电磁场能被真正应用于新型水雷武器引信,本文求解了在三层介质中运动的时谐水平偶极子在固定场点产生的电磁场.求解过程分为两步,首先求解静止时谐偶极子在介质中的固定场点产生的电磁场,然后通过狭义相对论的洛仑兹变换,得到匀速运动的时谐电偶极子在固定场点产生的电磁场.以浅海中低速运动的极低频时谐水平偶极子为例,对其产生的电磁场进行了数值计算,并且通过对比分析不同条件下的计算结果得出了一些有价值的结论.最后通过将计算结果与试验数据的对比,验证了本文的实用性和正确性.
In order to really apply the shaft-rate EM field to new type mine fuze,the EM fields at a fixed field point produced by a moving horizontally-directed time-harmonic dipole located in the three-layer medium have been derived.The whole process is divided into two steps,in the first step,the EM fields at a fixed field point produced by a fixed dipole are derived,then based on the basic principle of the special theory of relativity and Lorentz transformation,the EM field produced by the moving dipole are derived. Taking a ELF dipole moving slowly in the shallow ocean for example, the numerical calculations of its EM fields are car- ried out, some valuable conclusions ale reached through contrasting the calculation results of different conditions. In the end, the practicalities and validities of the calculation results are proved through contrasting the calculation results with experimentation data.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2009年第9期2077-2081,共5页
Acta Electronica Sinica
基金
国防"十一五"装备预研项目(No.51303030505-01)
关键词
时谐水平偶极子
麦克斯韦方程
洛伦兹变换
电磁场
horizontally-directed time-harmonic dipole
Maxwell equation
Lorentz transformation
EM field
