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介绍了一种能通过直接记录激振力来获得激振力矩的磁致伸缩棒力矩激励器的原理及其动态特性的理论分析和实验测试．首先建立了这种磁致伸缩棒力矩激励器动态特性的力学模型和相应的微分方程，推导了输出激励力矩的数学表达式，然后分析了影响磁致伸缩律力矩激励器输出力矩的各种因素，从而为改进这种磁致伸缩棒力矩激励器的结构设计提供了理论依据．之后，对一个磁致伸缩棒力矩激励器原型的输出激振力、输出激振力矩的纯度和频率特性及其互易关系进行了实际测试，其测试结果与理论分析非常吻合。最后还对影响测量背景噪声的因素进行了讨论．
A theory and experimental test of the principle and dynamic characteristics of a magnetostrictive rod torque exciter that can obtain the excitation torque by directly recording the excitation force are introduced. Firstly, the dynamic model and corresponding differential equation of the magnetostrictive rod torque actuator were established, the mathematical expression of the output excitation torque was deduced, and then the various factors affecting the output torque of the magnetostrictive torque actuator were analyzed. , Thus providing a theoretical basis for improving the structural design of such a magnetostrictive rod torque actuator. After that, the output excitation force, the purity and frequency characteristics of the output excitation torque and the reciprocal relationship of the prototype of a magnetostrictive rod torque actuator were tested. The results are in good agreement with the theoretical analysis. Finally, the factors influencing the measurement of background noise are also discussed.