拉力测试系统硬件设计

论文编号:DQ190   论文字数:12929,页数:40

摘  要
 “力”这个概念在我们生活中已经是司空见惯了，生活中有很多工具可用来测量，如弹簧秤、纽秤、握力器等，这些工具都是简单的机械式测量，虽然使用方便，但是准确度却不高。而且对于像卷尺、牵狗绳这类拉力随着长度而改变的力很难测量出来。本文研究了拉力测试的原理及方法，利用PLC、触摸屏、力传感器、A/D转换器、步进电机够了的系统来实现拉力的测试。系统通过触摸屏设计了人机界面，操作简单，具有现实意义，便于企业对其产品的合格检测等。
 
关键词： 拉力测试，PLC，触摸屏，步进电机

Abstract
 The concept of force is common in our life and there are many tools that can be used to measure force, such as spring balance, new balance, etc, these tools are very simple, although they are used conveniently, but not have high accuracy. And the pulling force which changes as long as its length change is difficult to measure, such as tape, the dog rope and so on.In this paper we make a study of the principle and method of tension tests, moreover, we do the tension test with a system which is constructed with PLC and touch screen, sensors, the A/D converter and stepping motor. In this system we designed a man-machine interface by touch screen, it can be operated simplify and have practical significance, what’s more it can be used to do product qualified inspection.
 
Key words: tension tests, PLC, touch screen, step motor

目录
摘  要 I
Abstract II
目录 III
1  前言 1
1.1  课题研究的背景和意义 1
1.2  拉力测试系统的现状和发展趋势 1
1.3  可编程序控制器在工业控制的应用状况 3
1.4  课题研究的主要内容和技术要求 4
2  拉力测试系统的总体设计 5
2.1  控制系统的设计 5
2.2  人机交互的设计 7
3  系统的硬件设计 8
3.1  PLC的选择 8
3.1.1 PLC简介 8
3.1.2 FP∑-C32概述 10
3.1.3 FP∑-C32的特点 10
3.1.4 FP∑-c32硬件介绍 11
3.1.5 FP∑-c32输入输出端子的电路连接 12
3.2  触摸屏的选择 14
3.2.1触摸屏简介 14
3.2.2 Pro—face GP37W2触摸屏 15
3.2.3触摸屏接线 16
3.3  电动机及其驱动器的选择 18
3.3.1步进电机的选择 18
3.3.2 HB202M双相混合式步进电机细分驱动器 21
3.4  压力传感器 24
3.5  放大器的设计 26
3.6  A/D模块的应用 28
3.7  课题研究成果展示 31
4  总结 34
致谢 35
参考文献 36

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