基于三端式磁通门技术的磁力梯度仪

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英文篇名：Magnetic gradiometer based on technique of three-tip fluxgate 中文刊名：上海海事大学学报 英文刊名：Journal of Shanghai Maritime University 作者：章志涛 ; 张松勇 ; 顾伟 英文作者：ZHANG Zhitao ; ZHANG Songyong ; GU Wei(Academy of Sci.& Tech. ; Shanghai Maritime Univ. ; Shanghai 200135 ; China) 中文关键词：三端式磁通门 ; 磁力梯度仪 ; 背景磁场 ; 闭环测量 英文关键词：three-tip fluxgate ; magnetic gradiometer ; background magnetic field ; closed loop measurement 出版日期：2008-06-15 机构：上海海事大学科学研究院,上海海事大学科学研究院,上海海事大学科学研究院 上海200135,上海200135,上海200135 年：2008 期：02 出版单位：上海海事大学学报

摘要

针对普通磁力仪测量磁场的梯度存在受背景磁场的影响大,从而导致测量精度低的问题,采用三端式磁通门技术和双探头的结构型式,试制1种三端式磁通门磁力梯度仪,其对背景磁场和磁强梯度均实现闭环测量.试验数据表明,背景磁场的干扰得到有效的消除,从而提高测量精度,且电路的稳定性能良好.
To the problem of the low precision of common magnetometers caused by the influence of the background magnetic field,a new fluxgate gradiometer which is based on the technique of the three-tip fluxgate and the structure-type of two sensors is developed.Its measuring systems of the background magnetic field and the magnetic grads are closed loops.It is showed by the experimental results that the influence of the background magnetic field is mostly eliminated,the precision is improved,and the stability of the gradiometer circuitry is good.

引文

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