压点式传感器的主要应用及举例介绍.doc

《现代传感器技术》 题 目： 压电式传感器的应用与发展趋势 学 院： 信息与通信工程学院 专 业： 仪器仪表工程 姓 名： XXX 任课教师： XXX 2013年 5月 26 日 压电式传感器的应用及发展趋势 摘 要 压电式传感器将被测量变化转换成由于材料受机械力产生的静电电荷或电压变化的传感器 关键词：压电式传感；加速度传感器；位移传感器；振动系统应用 The Application and Tendency of Piezoelectric Sensor at Home and Aboard Abstract The piezoelectric sensor is a kind of typically changing the measurements into the electrostatic charge or voltage change by mechanical force produced, It has the advantages of high sensitivity, wide frequency band, high signal-to-noise ratio, simple in structure, and reliable lightweight etc. And the piezoelectric sensors are constantly to intelligent development. The rapid development of electronic pressure sensor technology in recent years, It has been used in the pressure, acceleration, displacement measurements. The piezoelectric sensors are constantly to intelligent and miniaturized development since the development of PDVF piezoelectric film. This paper introduces the basic theory of piezoelectric sensors which are piezoelectric effect, piezoelectric materials, piezoelectric equation and piezoelectric sensor equivalent circuit. The piezoelectric acceleration sensor, piezoelectric film sensor, high G piezoelectric acceleration sensor, piezoelectric sensor in the vibration system are introduced referring to recent literatures. Keywords：piezoelectric sensor, acceleration sensor, displacement sensor, vibration system 目 录 1 绪论 2 1.1 压电传感器的特点及发展 2 1.2 压电传感器的国内发展现状 2 2 压电传感器基本理论 3 2.1 压电效应 3 2.2 压电材料 4 2.3 压电方程与压电常数 6 3 压电传感器典型应用 9 3.1 压电式加速度传感器 9 3.1.1 压电式加速度传感器的等效系统 10 3.1.2 特性曲线 10 3.1.3 压电式加速度传感器在振动测量系统的应用 10 3.1.4 基于压电加速度传感器的井下机车定位系统 12 3.1.5 几种高g值压电加速度传感器研制 13 3.1.6 新型压电加速度传感器 15 3.1.7 压电加速度传感器的系统设计 15 3.1.8 压电加速度传感器的灵敏度分析及误差形成因素分析 16 3.2 压电式压力传感器 17 3.2.1 压电式压力传感器在光纤传输技术的应用 17 3.2.2 压电式压力传感器在热冲击试验中的应用 18 3.3 压电式测力仪传感器 18 3.3.1 压电测力仪 18 3.3.2 新型压电式车削测力仪 20