电工钢用单片测量方法测量偏差分析  

Analysis of measurement deviation with single sheet testing method for electrical steel

作　　者：向前[1,2] 吴开明[1] 黄双 张俊鹏 

机构地区：[1]武汉科技大学材料与冶金学院,湖北武汉430081 [2]武汉钢铁有限公司质量检验中心,湖北武汉430080

出　　处：《钢铁研究》2017年第4期42-45,共4页Research on Iron and Steel

摘　　要：对取向电工钢SST(82)和SST(92)单片测试方法的差异进行分析,并对两者间的测量偏差进行量化评价。结果表明:SST(92)单片测试方法测量比总损耗较SST(82)平均偏高5.03%左右,这主要是因为SST(82)单片测试方法的有效磁路长度不固定,且离散性较大,而有效磁路长度主要跟单片磁轭有关。另外,直接测量试样磁场强度的H线圈方法由于规避了有效磁路长度的影响,可视为一种可靠的替代方法。The differences of SST （82） and SST （92） single sheet testing methods were analyzed, and the measurement deviation between each other was also quantitativly estimated. The results showed that the core loss tested by SST （92） single sheet testing method was about 5.03 % higher on average than by SST （82）. It was mainly because the effective magnetic path length of the SST （82） single sheet testing method varied and had large discreteness, which was related to the magnetic yoke. In addition, the H coil method to measure directly the sample magnetic field intensity eliminated the influence of the effective magnetic path length, so it could be regarded as a reliable alternative method.

关 键 词：SST测试方法 电工钢 有效磁路长度 H线圈方法 

分 类 号：TM275[一般工业技术—材料科学与工程]