摘要
在所有磁致伸缩材料中,稀土超磁致伸缩材料的应变值最高,能量密度最大,响应速度快(<1μs),频带宽,有智能响应功能。以上特点非常适合研制地球物理发射换能器设备,并能使传统发射换能器无法实现的功能得以实现。本文分二个方面,分别介绍了稀土超磁致伸缩材料的原理及特点,稀土超磁致伸缩材料在地球物理领域的应用现状与前景。
In all magnetic expansion materials, the rare-earth super-magnetic expansion material has such characters as high strain value, tense energy density, rapid response speed (<1μs), broad frequency and having intelligent response function, which is very suitable to develop geophysical emission transducer and can fulfil the functions that traditional emission transducer can' t. The paper introduced the principle and characters of the rare-earth super-magnetic expansion material, its current application and prospect in two aspects.
出处
《物探装备》
2003年第2期73-76,共4页
Equipment for Geophysical Prospecting
