磁流体加速度传感器的特征参量分析  

Characteristic parameter analysis on magnetic fluid acceleration sensor

作　　者：杨文荣[1] 杨庆新[1] 樊长在[1] 孙景峰[1] 刘素贞[1] 陈海燕[1] 

机构地区：[1]河北工业大学电磁场与电器可靠性省部共建重点实验室,天津300130

出　　处：《仪器仪表学报》2006年第10期1228-1231,共4页Chinese Journal of Scientific Instrument

基　　金：河北省自然科学基金(503028);河北省教育厅科研计划(2004417)资助项目

摘　　要：本文给出了一种磁流体加速度传感器的结构,分析了加速度传感器的频率特性,基于最小势能原理对所设计的磁流体加速度传感器进行了有限元动态建模,并得到系统的磁机械耦合动态模型,在此基础上得到了固有频率、静态灵敏度、阻尼比等特征参量,并以此为根据确定加速度传感器的结构参数。最后给出了实验结果,实验结果与理论预测基本相符。This paper presents the structure of magnetic fluid acceleration sensor and analyses the frequency characteristic of the sensor. The finite element dynamic model of the sensor is established based on minimum potential energy principle and the dynamic equation of the system is obtained, then some characteristic parameters such as resonance frequency, static sensitivity and damping ratio are given. The structure parameters of the acceleration sensor are determined based on these characteristic parameters. Finally the experiment result is given,which is consistent with that predicted by the theoretical model.

关 键 词：磁流体 加速度传感器 特征参量 频率特性 

分 类 号：TP212.12[自动化与计算机技术—检测技术与自动化装置]