鐵質(zhì)長旋轉(zhuǎn)橢球殼體在均勻恒定磁場中產(chǎn)生的感應場

彭懷云; 王元新; 潘威炎; 郭立新; 張紅旗; 陳宇

doi:10.11999/JEIT160683

鐵質(zhì)長旋轉(zhuǎn)橢球殼體在均勻恒定磁場中產(chǎn)生的感應場

doi: 10.11999/JEIT160683 cstr: 32379.14.JEIT160683

1.
(西安電子科技大學理學院西安 710071) ②(中國電波傳播研究所電波環(huán)境特性及?；夹g(shù)重點實驗室青島 266107)

基金項目:

國家863計劃項目(2015SQ712378, 2015SQ 712220)，中國電子科技集團公司重點實驗室專項基金(A171501023)

計量
- 文章訪問數(shù): 1103
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- 被引次數(shù): 0
出版歷程
- 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: 為了研究潛艇周圍的感應場，該文將潛艇的形狀理想化為一個旋轉(zhuǎn)對稱的長橢球殼體。該文導出了殼體內(nèi)外的感應磁場表達式，采用解析方法分析討論在外加均勻恒定磁場下，殼體上產(chǎn)生的總感應磁場以及各分量在不同緯度、不同放置方向和不同探測高度上的等值線分布。計算結(jié)果表明：隨著傳播距離的增加，感應磁場逐漸變?nèi)酢Ｑ貧んw縱軸方向(z分量)的感應磁場最顯著，而沿垂直方向(x分量)的感應磁場最小。與高緯度相比，中緯度總感應磁場和各分量更容易被磁力計探測到。隨著高度的增加，它們的探測范圍變化不大。殼體沿南北方向放置時更容易被探測到。
- 感應磁場 /
- 潛艇 /
- 磁力計 /
- 探測范圍
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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