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讨论了稀土超磁致伸缩棒特性实验的若干应力与电磁耦合问题，利用自己设计制作的实验装置建立了应力电磁耦合系统的物理模型，应用阻抗分析方法得到了相应的等效电路．测定了在电磁场与应力场共同作用下ＴｂｘＤｙ(１－ｘ)Ｆｅ２－ｚ三元稀土合金超磁致伸缩棒的磁致伸缩系数、机电耦合系数等．针对磁通泄漏问题，专门设计制作了圆柱型硅钢密闭磁路．本文的实验结果为稀土超磁致伸缩材料应用器件提供了重要而准确的数据．
Some problems of stress and electromagnetic coupling of rare earth giant magnetostrictive rod were discussed. The physical model of the stress electromagnetic coupling system was established by using the experimental device designed by ourselves. The corresponding equivalent circuit was obtained by impedance analysis method. The magnetostriction coefficient and electromechanical coupling coefficient of TbxDy (1-x) Fe2-z ternary rare earth alloy giant magnetostrictive rod were measured under the combined action of electromagnetic field and stress field. For the magnetic flux leakage, specifically designed and manufactured a cylindrical silicon steel closed magnetic circuit. The experimental results in this paper provide important and accurate data for the application of rare earth giant magnetostrictive materials.