金属磁记忆信号关联维数与应力关系

Relation of the correlation dimension of metal magnetic memory signal to stress

摘要: 为了研究铁磁性材料金属磁记忆信号与其内部机械应力之间的关系,应用小波分析技术,将金属磁记忆信号分解为大尺度逼近和细节分量两个部分,然后计算其细节分量的关联维数,并考察机械应力与关联维数变化之间的关系.结果表明,随着机械应力的增加,磁记忆信号关联维数降低.

Abstract: In order to study the linking between metal magnetic memory signal of ferromagnetic materials and stress, based on wavelet analysis the metal magnetic memory signal was decomposed into two parties, i.e., the large-scale approach and the detail section. The correlation dimension of the detail section was calculated and the relation of the correlation dimension to stress was investigated. It is shown that with increasing stress the correlation dimension decreases.