Research on dynamic characteristics of giant magnetostrictive acceleration sensors

Issue title: Selected Papers from the 14th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2009), Part I

Article type: Research Article

Authors: Yan, Rongge^{a; *} | Yang, Qingxin^a | Yang, Wenrong^a | Hou, Shuping^a | Liu, Fugui^a | Yan, Weili^a

Affiliations: [a] Province-Ministry Joint Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability, Hebei University of Technology, 300130 Tianjin, China

Correspondence: [*] Corresponding author. Rongge Yan, Tel.: +86 22 26564444; +86 22 60204355; Fax: +86 22 26564419; E-mail: yanrg@hebut.edu.cn

Abstract: This paper studies the dynamic response performance of giant magnetostrictive acceleration sensors. A magneto-mechanical strongly coupled dynamic model is presented, which is calculated by means of the finite element method. According to the proposed model, the time characteristic of the induced voltage for the acceleration sensor built with rare earth giant magnetostrictive alloy is calculated. A comparison between the calculated results and measured ones has been carried out to examine the validity of the proposed dynamic model and the FE implementation. It is found that they are in an agreement. This indicates that the proposed FE model can reflect dynamic response performance of giant magnetostrictive acceleration sensors.

Keywords: Giant magnetostrictive acceleration sensors, dynamic model, finite element method

DOI: 10.3233/JAE-2010-1125

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 33, no. 1-2, pp. 293-298, 2010