以#28钢丝绳为例，通过有限元法分析不同磁化方法对钢丝绳磁化效果的差异，探讨穿过式磁化器中各项几何参数的变化对于钢丝绳内部磁场和缺陷漏磁信号的具体影响，得到漏磁场轴向分量随磁化器几何尺寸的变化规律，得出钢丝绳检测穿过式磁化器的最优尺寸，并介绍了一种小尺寸的差分检测传感器。通过试验验证了上述磁化方法和传感器的检测效果，试验结果与有限元仿真结果基本相符，符合检测要求。结果有助于从整体上选择磁化方法，优化和微型化设计检测传感器，提高漏磁检测灵敏度。

Different effects of two magnetization methods were compared by FEM with no.28 wire rope being as an example. The magnetizer size influence on rope magnetic field and MFL signals was analyzed to obtain correlation curves of MFL axial component which was changing with magnetizer size and hence to obtain the best size of probe for rope detect. A miniature differential Sensor Array was introduced, the performance of the analysis method and sensor were validated by experiments and the experimental result just met the analysis result. The result can be used in magnetic circuit design for improving magnetic effect and testing sensitivity.