铝镍钴永磁材料磁参数测量不确定度评定  

Evaluation of Measurement Uncertainty for Magnetic Parameters of AlNiCo Permanent Magnetic Materials

作　　者：王子生[1] 李冬云[1] 吴琼[1] 胡秀坤[1] 肖小飞[1] 雷国莉[1] 葛洪良[1] 

机构地区：[1]中国计量学院材料科学与工程学院,杭州310018

出　　处：《电工材料》2012年第4期47-51,共5页Electrical Engineering Materials

基　　金：浙江省重大科技计划攻关项目(2011C11025)

摘　　要：剩磁、矫顽力、内禀矫顽力和最大磁能积是永磁材料最基本的磁性能参数,是反映永磁材料磁性能的重要指标。通过测量这些磁性能参数可以辨别永磁材料的优劣,指导选材和制订生产工艺。为了提高测量的准确性,有必要对影响测量的因素以及测量结果的不确定度进行分析和评定。本文采用国标GB/3217—1992《永磁(硬磁)材料磁性试验方法》规定的测量方法测量了铝镍钴永磁材料的磁性能参数,并按照技术规范JJF 1059—1999《测量不确定度评定与表示》规定的不确定度评定和表示方法,分析计算了铝镍钴永磁材料磁性能参数测量结果的不确定度。Remanence, coercivity, intrinsic coercivity and maximum magnetic energy product are the basic magnetic parameters of permanent magnetic, materials, as well as the important indica- tors to reflect the magnetic properties of permanent magnetic materials. The permanent magnetic materials can be evaluated and identified by measuring their magnetic parameters, which guide the selection and production process of permanent magnetic materials. In order to improve the measure- ment accuracy, it is necessary to study the influence factors and evaluate the measurement uncer- tainty. The magnetic parameters of AlNiCo permanent magnet magnetic were measured according to the national standard GB/T 3217-1992, and the uncertainties of the results were analyzed and calculated according to the JJF 1059-1999 technical specifications.

关 键 词：永磁材料 磁性参数 测量不确定度 

分 类 号：TM273[一般工业技术—材料科学与工程] TG132.2[电气工程—电工理论与新技术]