基于磁强计的消磁电流控制仪研制

摘要

To improve the vessel' s ability in the magnetic protection, in view of the problem that magnetometers are influenced by a variety of different types of interfering magnetic field in sailing, which seriously affect the accuracy of degaussing current control signal, a degaussing current controller based on magnetometer is designed. Through analyzing the data of magnetic field which are detected in real-time in the four base courses of the vessel and corresponding mathematical operations, the geomagnetic field component values and the interfering magnetic field component values are obtained, and thus the impact of interfering magnetic field on the degaussing current control signal is eliminated. Practical application shows that the instrument can detect the constantly changing magnetic field and accurately control the degaussing current to achieve a good degaussing effect.%为提高舰船的磁性防护性能,针对舰船航行过程中,磁强计会接收到多种不同性质的干扰磁场,严重影响消磁电流控制信号准确性的问题,设计基于磁强计的消磁电流控制仪.通过对在舰船4个主航向上实时检测到的磁场值进行分析和相应运算,可得到地磁场各分量值和各干扰磁场的分量值,从而排除干扰磁场对消磁电流控制信号的影响.实际应用表明,仪器能跟踪检测连续变化的磁场,准确控制消磁电流,达到良好的消磁效果.