毕业设计（论文）-基于单片机的智能型电导监测仪的设计精选.doc

摘 要 伴随着科学技术的飞速发展，单片机的应用正在不断地走向深入，同时带动智能检测技术的高速发展。在实时检测的单片机应用系统中，单片机往往是作为核心来使用，但仅有单片机方面知识是不够的，还应根据具体硬件结构，以及针对具体应用对象特点的软件结合，以使设计、生产更加完美。 随着科学技术的不断创新，越来越多的领域需要对液体内部的粒子含量和成分进行精确检测。本装置就是采用STC89C51单片机作为核心，辅以温度检测电路、电导率测量电路以及一些必须的单片机外围电路来实现对溶液中电导率的检测。检测电导池中粒子的含量并记录下来为系统的主要功能，其主要模块除单片机控制部分外，还有温度检测，电导率检测。以及通过扩展8155H芯片完成键盘和显示电路的设计。并具有报警等功能，使用灵活方便。 ：STC8155H 电导率 粒子 8155H The tester of Conductivity Abstract With the rapid development of science and technology the application of SCM is continuously toward deeper and deeper. Meanwhile drive smart detection of technology development in high speed. In real-time detection of microcomputer application system,the SCM is often used as a core.But only microcontroller aspects knowledge is not enough, still should according to the specific hardware structure and the view of the specific application object characteristics of software combined to make a design, production more perfect. Along with the science and technology unceasing innovation, more and more fields of liquid internal particles need accurate testing content and constituents. This device is using STC89C51 as the core, and complementary with temperature detection circuit, conductivity measurement circuit and some SCM buffer circuit for solution to realize the conductivity detection. Detection and to record of the particle content of conductance pool are the systems main function. Its main module except single-chip microcomputer control part outside,and temperature detection, conductivity detection. And by extension chips of 8155H to achieve keyboard and display circuit design. And has the alarm functions, use agile and convenient. Key word: STC8155H Conductivity Particles 8155H  目 录 第一章 绪论 1 1.1课题研究的目的及意义 1 1.2 课题研究背景及国内外研究现状 1 1.3 课题研究的主要内容 2 第二章 系统总体设计方案 4 2.1主要技术指标 4 2.2系统总体方案论证 4 2.3电导率测试仪硬件结构图 6 2.4系统软件流程图 7 第三章 系统硬件介绍及电路原理 8 3.1 AT89C51单片机特性及管脚接线介绍 8 3.1.1 AT89C51性能介绍 8 3.1.2 AT89C51 主要接线介绍 9 3.1.3 振荡器特性 10 3.1.4 芯片擦除 11 3.1.5 C51单片机处理器状态 11 3.1.6 C51单片机的