ACTUATION WITH TERFENOL-D

被引：18

作者：

GREENOUGH, RD

SCHULZE, MP

JENNER, AGI

WILKINSON, AJ

机构：

[1] Department of Applied Physics, University of Hull, Hull

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1991年 / 27卷 / 06期

关键词：

D O I：

10.1109/20.278834

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The magnetomechanical properties of Terfenol have been determined by two independent experiment techniques. Measurements on several samples of the same nominal compositions made by free float zoming reveal variations in quality. With a novel technique for scanning along the length of a Terfenol rod, structural defects can be detected which may explain these variations. A difference between magnetostrictive surface and bulk strains has been observed and the frequency response of the former is substantially different from theoretical predictions, casting doubt on techniques for the characterisation of Terfenol which involve the use of dynamic (AC) fields to measure the magnetostrictive strain coefficient d33. A description of the control strategies used to implement the actuation of Terfenol based transducers is given.

引用

页码：5346 / 5348

页数：3

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