作者：慕忠义, 孙国华, 贾焕歌

作者单位：陕西省计量科学研究院, 陕西西安 710000

关键词：零部件; 矫顽力; 测量

摘要：

电磁继电器铁芯磁性零部件的主要材料是电工纯铁、铁镍合金、低碳钢及其它的软磁材料。矫顽力Hc影响到继电器吸合及释放时间。本文讨论了形状复杂零部件矫顽力的测量方法。其各项技术指标均达到国家标准和IEC标准,解决了零部件矫顽力无法检测的难题。尤其振动线圈传感器设计独特,为该检测方法起到了重要作用。该检测方法是工业在线快速检测行之有效的测量方法。

Automatic measurement of coercivity of magnetic parts in electromagnetic relay

Mu Zhong-yi, SUN Guo-hua, JIA Huan-ge

Shanxi Institute of Metrology, Xi'an 710000, China

Abstract: The main matrials of the magnetic parts in electromagnetic relay are electrical iron,Fe-Ni alloy,mild steel and some other soft magnets.And their coercivities,Hc,have important effects on the pich-up time and release time.The main porpose of this paper is to intruduce a method of coercivity determintation for parts with various shap.This method overcomed the difficulty that we couldn't detect the coercivities of parts,and technical indicators of which are well satisfied with these requirments of national and IEC standards.Especially,the design of the sensor with vibration coil is originality,which plays a crucial role for this method.And also this method is an effective option for fast industrial on-line detection.

Keywords: Parts; Coercive; Measurement

2007, 33(3): 61-62,72  收稿日期: 2006-8-11;收到修改稿日期: 2006-10-23

基金项目: 

作者简介: 慕忠义(1954-),男,陕西铜川市人,高级工程师,主要从事电磁计量科研开发工作。

参考文献

[1] ISBN:7-111-00783-2/TM.110,刘兴民.直流磁性测量[M].北京:机械工业出版社,1989:4-5.
[2] 李大明,曲伟.一种新型的矫顽力测试仪[J].电测与仪表,1996,9:43-44.
[3] GB3656-1983,软磁合金直流磁性能测量方法[S].北京:冶金工业部,1983.
[4] IEC404-7,在开磁路中测量磁性材料的矫顽力的方法.国际电工委员会,1982.