舰船垂向感应磁场精确测量技术

Precision measurement of ship's induced vertical magnetic signatures

[目的]为了实现舰船垂向感应磁场的精确检测分析,提出一种联合采用数值分析法和地磁场模拟线圈法的新检测方法。[方法]采用数值分析法对模拟线圈的电流进行整定,利用整定后的模拟线圈产生的垂向模拟磁场检测舰船垂向感应磁场。构建模拟实验系统,并在一艘磁性船模上进行检测实验。[结果]结果表明,船模垂向感应磁场的检测值与标准值之间的差别小于4%。[结论]研究证实联合采用数值分析法和地磁场模拟线圈法可精确检测舰船垂向感应磁场,具有实际应用价值。

[Objectives]For the precision measurement of a ship's induced vertical magnetic signatures,a new method combining numerical analysis and geomagnetic simulating coils is proposed.[Methods]After the currents in the geomagnetic simulating coils are calibrated by numerical analysis,the coils are used to measure the ship's induced vertical magnetic fields.A simulation experiment installation is established and an evaluation test performed on a magnetic ship mockup.[Results]The results indicate that the difference between the measurement values and standard values of the ship mockup's induced vertical magnetic fields falls within 4%,[Conclusions]which validates the theory that this technique can be used for the precision measurement of a ship's induced vertical magnetic fields with high practical value.