智能压力传感器的设计..doc

辽宁石油化工大学 毕业设计（论 文） 题目 智能压力传感器设计 学院 信息与控制工程学院 专业 　　　　测控技术与仪器 　　　　　　　　 班级 0902班 姓名 康皙宁 学号 090302221 指导教师 张凯举 日期 2013-6-10 目录 摘要···························································2 1.引言····················································2 1.1课题研究背景············································2 1.2传感器发展动态··········································2 1.3选题——电阻应变式传感器································2 2. 传感器的相关知识·······································3 2.1传感器概念··············································4 2.2传感器的工作原理········································4 2.3传感器的组成结构········································5 3．设计原理·····································6 3.1柱形应变式力传感器······································6 3.2电桥原理················································8 3.3灵敏度··················································8 4．电阻应变片的相关知识·····························8 4.1电阻应变片的结构和工作原理······························9 4.2电阻—应变效应··········································9 4.3电阻应变片·············································10 5. 弹性元件设计······································12 6．传感器制作········································14 6.1所需材料及设备·········································14 6.2贴片···················································15 7．总结···············································15 致谢·························································16 参考文献·····················································17 摘要 传感器技术在当代科技领域占有十分重要的地位。传感器的种类很多，其中的电阻应变式传感器就是应用及其广泛的一种。本文重点介绍基于应变电阻的柱式压力传感器的设计原理及参数计算。 关键词：应变式压力传感器；电阻应变片；测量电桥  第一章．引言 1.1课题研究背景 现代信息技术的三大基础是信息的拾取、传输和处理技术，也就是传感技术、通信技术和计算机技术，它们分别构成了信息技术系统的“感官”、“神经”、“大脑”。如果没有“感官”感受信息，或者“感官”迟钝，都难以形成高精度、高反应速度的控制系统。可见传感器技术是一种和其他多种现代科学技术密切相关的尖端技术。应变式力传感器用作静态、动态条件下测力或称重，在我国工业生产过程检测与控制、自动计量等领域已大量应用。随着技术进步以及