自动电阻测试仪的设计(任务书,开题报告,论文15000字)
摘要
电阻在我们的日常生活中占了很大一部分的比例,与我们的生活息息相关,甚至可以说是没有电阻就没有我们今天的方便的生活。但是随着工业的进步和发展,以及为了替换老的电阻换成新的电阻,每天都有各式各样的旧电阻和不能使用的电阻被淘汰。如何正确测量这些电阻的阻值以便更方便地对这些旧的、废弃的电阻进行分类处理,成为了当今工业研究中的一个难题。于是我便设计了如下这种自动电阻测量仪以迅速对废弃电阻进行测量,它可以测量100Ω、1KΩ、10KΩ、10MΩ四档的电阻并把误差控制在±1%以内,采用了A/D转换器外接液晶屏输出显示数值,并以单片机作为主体的处理核心。在使用了这种电阻测量仪之后,就能快速对电阻阻值进行测量并快速分类,大大提高了工作效率,也减少了工作量。
本文主要是对自动电阻测量仪的设计进行介绍,包括以下几个部分:
对研究背景和发展前景以及为什么要做这一个器材进行讨论研究和解释;
对选材,所用器具的具体型号和采用的测量方法进行对比讨论;
进行仿真模拟和编程,运行程序后得出实验结果,并对结果进行分析。
关键词:电阻测量 A/D转换器单片机
Abstract
Resistance is a large proportion of our daily lives and it is closely related to our lives. It can even be said that without resistance, there is no convenient life for us today. However, as the industry progresses and develops, and in order to replace old resistors with new resistors, various old resistors and unusable resistors are eliminated every day. How to correctly measure the resistance of these resistors to more easily classify these old, discarded resistors has become a problem in today's industrial research. So I designed the following automatic resistance meter to rapidly measure the waste resistance. It can measure the resistance of the fourth gear of 100Ω, 1KΩ, 10KΩ, 10MΩ and control the error within ±1%, and adopts A/D conversion. External LCD display output value, and the microcontroller as the main processing core. After the resistance meter is used, resistance resistance can be quickly measured and quickly classified, which greatly improves work efficiency and reduces workload.
This article mainly introduces the design of automatic resistance meter, including the following parts:
Discuss and research the research background and development prospects and why it is necessary to do this equipment;
For the selection of materials, the specific types of instruments used and the measurement methods used are compared and discussed;
Perform simulation and programming, run the program and get the experimental results, and analyze the results.
Keywords: resistance measurement A/D converter MCU
目录
摘要 3
Abstract 4
一.绪论 5
1.课题背景及意义 5
2.国内外现状分析 5
3. 系统实现的主要内容 6
4. 论文结构概览 6
5.本章小结 6
二.所需器材及其介绍 7
1.单片机 7
2.A/D转换器 8
3.LCD显示屏 9
4.本章小结 10
三.仿真环境 11
1.仿真软件的选择 11
2.仿真软件的测试 14
3.本章小结 17
四.测量方案的设计 18
1.系统总体设计 18
2.电阻测量模块的设计 18
3.主要控制模块 23
4.A/D转换模块 24
5.液晶显示模块 25
6.电源电路 26
7.晶振电路的设计 27
8.复位电路的设计 28
9.各模块方案确认 29
10.本章小结 29
五、软件实现 30
1.控制测量程序 30
2.数据处理程序 30
3.软件操作流程图 30
图17 软件操作流程图 31
六、仿真测试方案与测试结果分析 32
1.测试方案 32
2.测试结果 32
3.结果分析 33
七、总结与展望 34
1.设计总结 34
2.展望 35
参考文献 36
致谢 37 |