由舰船垂向分量磁场获得其三分量磁场的研究  

Deriving three-component magnetic field data from a measurement of the vertical magnetic field

作　　者：隗燕琳[1] 肖昌汉[1] 陈敬超[1] 周国华[1] 

机构地区：[1]海军工程大学电气与信息工程学院,湖北武汉430033

出　　处：《哈尔滨工程大学学报》2008年第2期111-114,共4页Journal of Harbin Engineering University

基　　金：国家海洋专项基金资助项目(420050101)

摘　　要：三分量测磁仪使用不便,且造价较高,因此提出一种改进的磁场推算法.该法仅用舰船下方某平面上少量测量点的垂向磁场即可算出测量面下方所需场点的舰船三分量磁场.从理论上证明了该方法的可行性,建立了磁场推算的数学模型,在此基础上进行了船模实验.实验证明该算法可行,具有较高的推算精度,且算法直观,编程简单,计算速度快,可以方便地应用于工程实际,对舰船磁防护的研究具有重要价值.It is usually necessary to use a great number of three-component magnetometers to measure the magnetic fields of vessels. Any method that simplifies this process would allow considerable savings in money and effort. To this end, an improved method is proposed to calculate the three-component vectorial fields of vessels based on data from the vertical magnetic field of the vessels, measured by a few magnetometers on a plane at the bottom of the ship. The method is shown to be theoretically feasible, then the mathematical model established. The proposal was tested and showed good agreement with results calculated in the traditional way.

关 键 词：舰船磁防护 三分量测磁仪 单分量测磁仪 磁场推算 

分 类 号：TM154.2[电气工程—电工理论与新技术]