目 录
摘 要..................................................................................................................................................................1
ABSTRACT............................................................................................................................................................2
第 1 章 绪 论...........................................................................................................................................3
1.1 课题的研究目的及意义 ..................................................................................................3
1.2 本课题国内外研究现状 ..................................................................................................3
1.3 本课题主要的研究内容 ..................................................................................................3
1.4 温度测控系统的总体设计 ..............................................................................................4
1.4.1 系统实现的功能 ............................................................................................................................4
1.4.2 系统的设计原则 ............................................................................................................................4
1.4.3 总体设计方案..................................................................................................................................4
1.4.4 软件开发平台的选择 ...................................................................................................................5
第 2 章 相关理论与技术支撑..........................................................................................................6
2.1 虚拟仪器概述 ..................................................................................................................6
2.1.1 虚拟仪器的概念.............................................................................................................................6
2.1.2 虚拟仪器的主要特点...................................................................................................................6
2.1.3 虚拟仪器的体系结构...................................................................................................................6
2.1.4 LabVIEW 概述 ................................................................................................................................8
2.2 PID 控制技术简介.........................................................................................................8
2.2.1 PID 控制器概述 ..............................................................................................................................8
2.2.2 PID 控制器的分类 .........................................................................................................................9
2.3 本章小结 ........................................................................................................................10
第 3 章 温度侧控系统的硬件电路设计....................................................................................11
3.1 PCI-6024E 数据采集卡的配置 ......................................................................................11
3.2 温度采集电路设计 ........................................................................................................13
3.3 温度控制电路的设计 ....................................................................................................14
3.4 本章小结 .........................................................................................................................14
第 4 章 温度测控系统的软件设计...............................................................................................15
4.1 软件总体设计 .................................................................................................................15
4.2 系统的数据采集与输出模块的软件设计 ....................................................................16
4.2.1 NI-Traditional DAQ 简介 ..........................................................................................................16
4.2.2 输入输出模块的软件设计 .......................................................................................................17
4.3 PID 控制器的设计..........................................................................................................18
4.3.1 LabVIEW8.6 的 PID Tookit 简介 ..........................................................................................18
4.3.2 PID 参数的整定............................................................................................................................20
4.3.3 系统 PID 控制的实现.................................................................................................................20
4.4 实时显示模块的设计 ....................................................................................................21
4.5 越限报警模块的设计与实现 ........................................................................................22
4.6 数据存储模块设计 .........................................................................................................22
4.6.1 DDE 概述........................................................................................................................................22
4.6.2 数据存储功能的实现 ................................................................................................................23