闭环消磁发展现状及关键技术研究

Review on development status and key technologies of closed-loop degaussing

介绍了闭环消磁系统的工作原理和优点,梳理了近三十年来的国外研究进展和发展现状.将闭环消磁的关键技术总结为三个方面,即磁传感器布置策略、干扰磁场抑制方法和外部磁场预测方法.首先分析了传感器在不同区域布置的优缺点,列举用于确定特征点位置和数量的优化方法;其次明确了闭环消磁技术的测量内容和要求,总结部分常用的磁场抗干扰技术;最后介绍了不同国家采用的磁场预测方法和步骤,对比分析不同方法的优缺点.基于现阶段的研究成果,展望了闭环消磁技术在舰船全空间磁场预测和涡流磁场补偿方面的应用,以进一步提升闭环消磁系统的磁场补偿能力.

The working principle of the closed-loop degaussing system and its advantages were introduced,and the research progress and development status of foreign countries in the past 30 years were reviewed.The key techniques of closed-loop degaussing were summarized into three aspects,namely,magnetic sensors arrangement strategy,interference magnetic field suppression method and external magnetic field prediction method.First,the advantages and disadvantages of sensors arrangement in different areas were discussed and analyzed,and the optimization methods for determining the position and number of feature points were listed.Then,the measurement contents and requirements of closed-loop degaussing technology were defined,and some common magnetic field anti-interference technology was summarized.Finally,the methods and procedures of magnetic field prediction used in different countries were introduced,and the advantages and disadvantages of different methods were compared and analyzed.Based on the current research results,the application of closed-loop degaussing technology in ship full-space magnetic field prediction and eddy current magnetic field compensation was prospected to further improve the magnetic field capability of closed-loopdegaussing system.