摘要
介绍了压电式四臂微加速度计的工作原理,耦合场分析原理以及ANSYS软件在压电分析中的具体应用。以压电式四臂加速度计为例,使用ANSYS软件对其进行了静态,模态等分析,得出了压电层厚度、悬臂厚度、长度对加速度计灵敏度的影响。在模态分析中得出了加速度计的前三阶固有频率和与之对应的振动形态。本文的结果可以直接应用到加速度计结构的优化设计。
This paper addresses the theory of four-beam piezoelectric accelerometer, coupled-field analysis, and application of piezoelectric accelerometer. Static and model results of four-beam piezoelectric acceleromter are gained by using ANSYS. In static analysis, relation-ship between sensitivity and thickness of piezoelectric thin film, thickness of suspension beam , and length of the beam are discussed. In model analysis, this study demonstrates the first three fundamental resonant frequencis and the corresponding modes of the accelerometer. The results of of this paper can be readily applied to performance trade-off and design optimization.
出处
《传感技术学报》
EI
CAS
CSCD
北大核心
2006年第3期637-641,共5页
Chinese Journal of Sensors and Actuators
作者简介
董明(1981-),在读硕士研究生,主要研究功能材料与传感器,dongming@sjtu.edu.cn
惠春(1955-),通讯作者,博士,教授,主要研究功能材料与传感器,chhui@sjtu.edu.cn