Application of magnetoelastic waves for sensors of displacement

被引:12
作者
Germano, R [1 ]
Lanotte, L [1 ]
机构
[1] UNIV NAPLES FEDERICO II,DIPARTIMENTO SCI FIS,IST NAZL FIS MAT,I-80125 NAPLES,ITALY
关键词
magnetostriction; magnetoelastic waves; sensors of rotation; position sensors;
D O I
10.1016/S0924-4247(97)80201-4
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
It is shown that the amplitude of resonant magnetoelastic waves is very sensitive to local change of magnetic field. Since a moving object can be related to a variation of the magnetic field produced by its displacement, the last one is detected and its amount evaluated by means of a sensor based on magnetoelastic waves. The prototype of this type of sensor is presented and several experimental results are reported to prove the preceding asserts. (C) 1997 Elsevier Science S.A.
引用
收藏
页码:337 / 341
页数:5
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