铁质长旋转椭球壳体在均匀恒定磁场中产生的感应场

彭怀云; 王元新; 潘威炎; 郭立新; 张红旗; 陈宇

doi:10.11999/JEIT160683

铁质长旋转椭球壳体在均匀恒定磁场中产生的感应场

doi: 10.11999/JEIT160683

1.
(西安电子科技大学理学院西安 710071) ②(中国电波传播研究所电波环境特性及模化技术重点实验室青岛 266107)

基金项目:

国家863计划项目(2015SQ712378, 2015SQ 712220)，中国电子科技集团公司重点实验室专项基金(A171501023)

计量
- 文章访问数: 1071
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- 被引次数: 0
出版历程
- 收稿日期: 2016-06-29
- 修回日期: 2016-12-30
- 刊出日期: 2017-05-19

Induced Fields Produced on Iron Rotation Long Ellipsoid Cavity under Uniform Constant Magnetic Field

1.
(School of Science, Xidian University, Xi&rsquo
2.
(National Key Laboratory of Electromagnetic Environment, Research Institute of Radio Wave Propagation, Qingdao 266107, China)

Funds:

The National 863 Program of China (2015SQ712378, (2015SQ712220), China Electronics Technology Group Corporation National Key Laboratory Special Fund (A171501023)

摘要

摘要: 为了研究潜艇周围的感应场，该文将潜艇的形状理想化为一个旋转对称的长椭球壳体。该文导出了壳体内外的感应磁场表达式，采用解析方法分析讨论在外加均匀恒定磁场下，壳体上产生的总感应磁场以及各分量在不同纬度、不同放置方向和不同探测高度上的等值线分布。计算结果表明：随着传播距离的增加，感应磁场逐渐变弱。沿壳体纵轴方向(z分量)的感应磁场最显著，而沿垂直方向(x分量)的感应磁场最小。与高纬度相比，中纬度总感应磁场和各分量更容易被磁力计探测到。随着高度的增加，它们的探测范围变化不大。壳体沿南北方向放置时更容易被探测到。
- 感应磁场 /
- 潜艇 /
- 磁力计 /
- 探测范围
Abstract: The shape of the submarine is idealized as a rotation symmetrical long ellipsoid cavity in order to study the induced fields around the submarine. The expressions of the induced magnetic fields in inside and outside cavity are derived. The contour distributions of the total induced magnetic field and each component on the cavity along different latitudes, different location directions and different detection heights are analyzed and discussed by the analytical method under the uniform constant magnetic field. The calculation results indicate that the induced magnetic fields will gradually die down along with the increase of the propagation distance. The induced magnetic field is prominent along the cavity longitudinal direction (z component), while it is minimum along the cavity vertical direction (x component). The total induced magnetic field and each component detected by the magnetometer at middle latitude can be more easily detected than those at high latitude. While their detection ranges change very little along with the increase of the height. It can be more easily detected when the cavity is placed along the south and north direction.
- Induced magnetic field /
- Submarine /
- Magnetometer /
- Detection range

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