Laminated Structures and Measurement of Magnetostriction for Transducer Applications

Qinghua Cao1, 2, 3, Dingfang CaoChen2, Quanguo Lu*, 3, Jianwu LuYan3, Gang Tang3, Zhifang Zhu3, Zhang Xiaoxing3, Tao Zhen3
1 School of Automation, Wuhan University of Technology, Wuhan, 430083, China
2 Institute of Intelligent Manufacturing and Control, Wuhan University of Technology, Wuhan, 430063, China
3 Institute of Micro/nano Actuation and Control, Nanchang Institute of Technology, Nanchang, 330099, China

© 2014 Qinghua et al

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: ( This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


This paper aims to designed a prototype for achieving the full magnetostriction of Galfenol, Lamination struction of transducer is designed and the radiation impedance is expressed in mechanical terms, a simplified onedimensional modeling of SPICE magnetostrictive transducer is established, the electrical input impedance is simulated as the function of frequency and experimentally adjusting the values is to match an existing impedance curve. a good fit between model and measurement is shown by measured and simulated electrical input impedances for the device.

Keywords: Dynamic system, laminated beam, magnetostriction, transducer.