A novel magnetostrictive static force sensor based on the giant magnetostrictive material
A novel magnetostrictive static force sensor based on the giant magnetostrictive material
复制标题
一种基于超磁致伸缩材料的新型磁致伸缩静力传感器
DOI：
10.1016/j.measurement.2010.09.031
复制
发表时间：
2011-01-01
期刊：
影响因子：
5.6
通讯作者：
Ge, Chun-Ya
中科院分区：
文献类型：
--
作者：
Jia, Zhen-Yuan;Liu, Hui-Fang;Ge, Chun-Ya
为了实现静态力的测量，提高磁致伸缩力传感器的灵敏度，提出了一种新型的超磁致伸缩材料杆式磁致伸缩静态力传感器。集成在传感器中的霍尔传感器用于测量力作用下的磁通密度变化。为了提高传感器的灵敏度，提出了一种特殊的霍尔传感器外围结构.首先阐述了超磁致伸缩力传感器的设计方法。用有限元法分析了其磁特性。建立了基于线性磁-机耦合本构方程的磁-机耦合本构模型，实验结果表明该模型能较好地反映磁-机耦合本构关系。通过实验研究了最佳偏置磁场和灵敏度。该传感器的灵敏度是不带不锈钢环的传感器的6.14倍。本文为超磁致伸缩材料磁致伸缩力传感器的研制奠定了基础。皇冠版权所有（C）2010由爱思唯尔有限公司出版。保留所有权利。
In order to realize static force measuring and improve the sensitivity of magnetostrictive force sensor, a novel magnetostrictive static force sensor with giant magnetostrictive material rod is presented. A Hall sensor integrated in the sensor is used to measure magnetic flux density variation under force. A special structure surrounding Hall sensor is proposed to improve the sensitivity. The design method of the giant magnetostrictive force sensor is expounded firstly. The magnetic characteristics are analyzed by FEM. A model is developed based on the coupled linear magnetomechanical constitutive equations and the experimental result shows that the model is good at reflecting the force. The optimal bias magnetic field and sensitivity are studied through experiments. The sensor sensitivity is 6.14 times higher than that of the sensor which dose not have a stainless steel ring. The paper lays a foundation for the development of magnetostrictive force sensor with giant magnetostrictive material. Crown Copyright (C) 2010 Published by Elsevier Ltd. All rights reserved.