稀土—铁系超磁致伸缩材料的应用研究

本文对稀土－铁系超磁致伸缩的基本特性及应用前景进行了回顾与总结，剖析了该材料应用器件原理及结构，系统地介绍了国外稀土铁系超磁致伸缩材料在各个领域的应用及开发情况。展示了作者研制的低频水声换能器。该换能器具有低频，宽频带及电流灵敏度高的特点。

The Study on Application of REFe 2 Based Giant Magnetostrictive Materials

The basic properties of REFe 2 giant magnetostrictive materials and application prospects have been reviewed. The principle and structure of devices with the materials have been proposed. The applications and developments of overseas REFe 2 giant magnetostrictive materials in various fields were systematically introduced. The transducer developed by writer, with the properties of low specified resonant frequency, width frequency band and high current sensitiyity was discribed.