铁磁材料的逆磁致伸缩效应实验研究

An Experimental Study on the Counter-magnetostrictive Effect of Ferromagnetic Material under Different Applied Torques

为了了解铁磁性材料的力学与磁学性能的耦合关系,通过实验测量了4种不同的铁磁性材料在不同扭矩作用下的磁通量关系曲线,并对出现的现象作了初步的分析,发现材料的磁特性与应力引起的磁畴变化有关,并对利用逆磁致伸缩效应进行扭矩测量提出了建议。

A few materials under different applied torques are tested to find out the relationship between magnetic materials and their magnetic properties with the flux curves obtained. Based on an analysis to the curve characteristic, it is found that the magnetic characteristics are closely related to the change of magnetic domain caused by stresses. In this respect, suggestions of torque measurement based counter-magnetostrictive effect are put forward hereafter.