基于LabVIEW的温度测控系统仿真研究.doc

唐 山 学 院 毕 业 设 计 设计题目：基于LabVIEW的温度测控系统仿真研究 系 别：_________________________ 班 级：_________________________ 姓　 　名：_________________________ 指 导 教 师：_________________________ 2008年6月6 日基于LabVIEW的温度测控系统仿真研究 摘 要 随着科学技术的进步,计算机测控技术在各个领域得到越来越广泛的应用。温度测控就是其中重要的一部分。温度测控的关键就是测温和控温。温度的测量是温度控制的基础，这方面的技术已经比较成熟，而温度控制方面还处在发展期，并且随着温度控制对象的复杂化、多样化，使得温度控制面对越来越多的问题。 本论文以电阻炉为研究对象,提出了基于LabVIEW的温度测控仿真系统设计，在深入剖析其温度控制系统的同时对PID控制及其算法进行了广泛的研究，并最终确定了该系统的温度控制数学模型。在比较研究不同控制策略的基础上,应用虚拟仪器技术对传统PID控制在电阻炉温度控制中的应用进行了仿真研究,并针对电阻炉中可能出现的阶跃干扰和随机干扰进行了仿真，以利于改善电阻炉温度的控制品质,提高控制效果。 关键词：温度控制；LabVIEW；PID控制；仿真 The Research of Temperature Measurement and Control system Based on Virtual Instrument Abstract With the development of science and technology, the computer observation and control technology has extended to more fields than before. The observation and control of temperature is an important part of them. The key of temperature control is to measure and to control. Temperature measure is that the more technical comparison of this respect and the foundation of temperature control ripen. But the temperature control is still in development, and since controlling object more and more complex, in the aspect of temperature control, there are still a lot of problems. This thesis takes the electric resistance stove as the research object, the temperature that put forward according to the LabVIEW measures to control to imitate the true system design, controlling to the PID at the time of going deep in to analyze its temperature control system and its calculate way carried on the extensive research, and end make sure the temperature control mathematics model of that system. At comparison the research dissimilarity control strategy of foundation up, the application that applies the virtual instrument technique to control to the traditional PID in the electric resistance a temperature control carried on imitating the true research, and aim at the electric resist