[理学]应变式力传感器的设计.doc

应变式力传感器的设计 工 学 部 工学Ⅰ部 专 业 班 级 学 号 200 姓 名 指导教师 负责教师 沈阳航空工业学院北方科技学院 2007年6月摘 要 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。随着技术进步以及用现代电子信息技术改造传统产业的深入，其需求量日趋增加关键词：力传感器；电阻应变片；电桥；线性度The article main introduced the variant force sensor design and its application. In Current era, transducer technology has already developed to an independent class of for electronics industry basic product and has been an important technological foundation of information society. The strain type strength transducer is used as measured the strength or weighed in the static, dynamic condition, measured and controlled, automatic gauge and so on is already a large amount of application in the industrial production process of our country. With the deepening reformation of the traditional industry with the modern electronic information technology and the technological development, it’s demanding increases day by day. This essay Mainly introduce the operation principle of the transducer, the basic operation principle of Resistance Strain slice ,the choice of material of the transducer, the choice of the elastic component, structure and design of the Strain type strength transducer ; And introduced two kinds of applied forms of the resistance Strain type strength transducer briefly, column type strength transducer, beam type strength transducer, and Pasting the type of their glue and craft principle, recommend the compensation method of temperature and so on finally. Have looked forward to current situation and prospect of the strain type strength transducer briefly. Keywords: Force transducer; Resistance Strain slice; Electric Bridge; Linear degree 目 录 1 引言 1 1.1 课题研究背景 1 1.2 国内外发展动态 1 2 传感器的相关知识 3 2.1 传感器概念 3 2.2 传感器的工作原理 3 2.3 传感器的组成结构 5 3 电阻应变片的相关知识 7 3.1 电阻应变片的结构和工作原理 7 3.2 电阻应变效应 8 3.3 电阻应变片的种类及材料 10 3.3.1 电阻应变片的种类 10 3.3.2 电阻应变片的材料 13 3.4 金属应变片的主要特性 14 4 电阻应变式力传感器的设计 19 4.1 柱形应变式力传感器 19 4.1.2 利用拉伸与压缩应力的称重传感器 20 4.1.3 柱式称重传感器的误差来源 23 4.2 梁式力传感器 23 5 粘贴技术及稳定处理 28