Nonlinear Magnetoelectric Response Characteristics of Galfenol-piezoelectric Composite Sensors

被引：0

作者：

Zhu, Zhiwen ^{[1
]}

Wen, Yaqin ^{[1
]}

Sheng, Hui ^{[1
]}

Xu, Jia ^{[2
]}

机构：

[1] Tianjin Univ, Dept Mech, 92 Weijin Rd, Tianjin 300072, Peoples R China

[2] Tianjin Univ, Tianjin Key Lab Nonlinear Dynam & Control, 92 Weijin Rd, Tianjin 300072, Peoples R China

来源：

SENSORS AND MATERIALS | 2018年 / 30卷 / 08期

关键词：

Galfenol; piezoelectric ceramics; hysteretic nonlinearity; magnetoelectric response;

D O I：

10.18494/SAM.2018.1902

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A kind of Galfenol-piezoelectric composite sensor is proposed, and its nonlinear magnetoelectric response characteristics are analyzed in this paper. New nonlinear differential terms with fractional index are proposed to explain the hysteresis of Galfenol's strain-magnetic field intensity (MFI) curves and the piezoelectric zirconate titanate (PZT)'s displacement-voltage curves, and a nonlinear dynamic model for such a sensor under a harmonic magnetic field is developed when the electromagnetic interference (EMI) is considered. The expression of the system's dynamic response is obtained, and its bifurcation is discussed. Finally, the simulation results are proved by experiments. The theoretical and experimental results show that the intensity of EMI plays an important role in the system's response. These results may be helpful for the optimal design and improvement of Galfenol-piezoelectric composite sensors.

引用

页码：1877 / 1884

页数：8