磁性材料三维磁特性中新型传感结构的优化设计

Optimization of Novel Sensing Structure of 3-D Magnetic Properties Study in Magnetic Materials

电工材料电磁特性的精细模拟是决定电机、变压器等电工设备电磁场分析与损耗计算的关键因素之一。为了全面地分析材料的磁特性,提出了三维磁特性测量方法。考虑到由于样品更换而造成机头偏转,研发了一种高精度的B-H复合传感线圈和带匀场极靴的传感结构,并对传感线圈进行系数校准和无功补偿。基于此,对比分析了在考虑谐波条件下的无取向硅钢片(35WW270)和取向硅钢片(27ZH95)的磁特性和损耗特性,结果表明:取向硅钢片的各向异性更加显著。

In order to analyze the magnetic properties of the materials,comprehensively,the method of 3-D magnetic properties is proposed.Considering the offset core pole due to change samples,a novel combined B-H sensing coil with high precision and the sensing structure with the uniform pole shoe are designed. Coefficients calibration and reactive compensation of sensing coils are analyzed.Based on that,comparing with the magnetic properties and loss features of non-oriented silicon steel laminations（ 35 WW270） and oriented silicon steel laminations（ 27 ZH95）,respectively.The results show that anisotropy of oriented silicon steel laminations is more obvious.