摘要
针对数值计算方法精度难以保证、双航向及两地测量法难以实施、地磁模拟法测量精度与所模拟的地磁场均匀度高度相关等问题,提出了一种基于体单元与测点间磁场映射关系的舰艇感应磁场测量方法。该方法利用消磁站已有的地磁补偿线圈产生磁场来对船体进行磁化,且不需要线圈产生的磁场在舰艇所占区域内均匀,因而大大降低了在单一航向上准确测量舰艇感应磁场的难度。仿真分析和实验室实验的结果均表明:该方法测量精度高、测量步骤简单、易于工程实现。
Considering such problems as the imprecision of the numeric method, the difficult implementation of two courses and two places methods, and the high dependency of geomagnetic field si-mulation method on the uniformity of the simulated field and so on, an approach of ship induced magnetic field measurement based on the magnetic mapping relation between body elements and measu-ring points is proposed. With the existing geomagnetic compensation coils in the degaussing stations, the ship′s induced magnetic field can be obtained by the approach even if the magnetic field produced by the coils is not uniform, and thus the easier measurement. The results of the simulation and the experiment in the laboratory all show that the approach has the advantages of high precision, simplified procedure and easy implementation in engineering practice.
作者
刘胜道
曲毅
周国华
赵文春
陈瀚斯
LIU Sheng-dao;QU Yi;ZHOU Guo-hua;ZHAO Wen-chun;CHEN Han-si(College of Electrical Engineering,Naval Univ.of Engineering,Wuhan 430033,China;Naval Equipment Department,Beijing 100071,China)
出处
《海军工程大学学报》
CAS
北大核心
2019年第6期72-76,82,共6页
Journal of Naval University of Engineering
关键词
感应磁场
舰艇磁隐身
磁场映射关系
地磁补偿线圈
induced magnetic field
ship magnetic silencing
magnetic mapping relation
geomagnetic compensation coil
