毕业设计（论文）-基于应变式传感器的扭矩检测系统设计.docx

基于应变式传感器的扭矩检测系统设计摘 要近年来，随着科学技术的进步和测试技术的发展，对扭矩传感器提出了更高的要求。工程和实际中,许多情况下必须控制和知道扭矩的大小。本文是在对比多种传感器的基础上针对其他扭矩传感器的缺点，研制开发了一种结构简单，工作稳定的新型高精度应变式扭矩测量仪。本文对扭矩传感器的发展现状进行了分析，并明确了研究内容和工作步骤。在扭矩传感器主体的设计过程中，首先介绍了应变式扭矩传感器的测量原理，介绍了一种高精度智能控制扭矩测试仪的设计 ,描述了该仪器的主要机械结构、 电路结构和工作原理 ,给出了软件程序流程。采用高精度应变式传感器，数据采集分析技术设计小量程的静态及低转速动态扭矩。检测装置达到了预期设计目标要求，相对于其他检测方式精度高而且操作方便。关键词：应变式传感器 扭矩测量 电桥The design of torque measurement system based on strainAbstractRecently，with the development of test technology and the progress of science and technology，torque sensor is put forward higher requirement． The torque moment size must be controlled and known in engineering and practicality. This paper contraposing the shortcomings of other torque sensors a kind of strain gauge high-precision torque instrument is designed and developed, which has simple structure and high stability. The present development situation of torque sensor is investigated in this paper, and confirms the research content and procedure．During the course of designing main body of torque sensor, measurement pimple of strain torque sensor is introduced firstly .This paper introduces the design of a precise torsion testing instrument based on a single chip , giving the mechanism structure , the circuit diagram and the sample machine.Using of high-precision torque sensors, data acquisition and analysis techniques to design small range of static torque can achieve the expected requirements and also can get the higher precision and easier operation reliving to the hanging weight detector.Key words: torque sensor ，torque measurement，bridge method目录摘 要IAbstractII1　绪论11.1 引言11.2 课题的研究背景与来源11.2.1课题研究背景11.2.2课题研究来源21.3 扭矩测量发展现状及扭矩检测的几种方法21.3.1扭矩测量的发展现状21.3.2扭矩测量的几种方法31.3.3扭矩测量的发展前景51.4 课题研究的内容和方法51.4.1 课题研究内容51.4.2 课题研究方法62 检测装置的基本原理和总体方案72.1引言72.2检测装置整体系统框图72.3电阻应变片及扭矩测量的基本原理：72.3.1电阻应变片的基本原理72．3.2扭矩测量的基本原理92.4各部分功能介绍102.5方案论证113 扭矩传感器的设计123.1引言123.2 应变片的选用123.3弹性敏感元件设计133.4 扭矩传感器的硬件结构133.4.1 弹性轴材料的选择和确定133.4.2 联轴器的选用143.4.3导电滑环及滑臂电刷的选用164 扭矩检测系统各部分电路的设计