智能型液体漏检测仪设计毕业设计论文.docVIP

智能型液体漏检测仪设计 摘 要：在半导体、石油、化工、药物工业所处理的液体大部分是带有污染性而且有毒的,因而安全的生产、存储、运输是个大问题隐患发生任何一次泄漏不能及时地发现和排除，不设备的损坏，数据丢失造成The design of forward data channel in liquid leakage checking system Abstract: In the field of semiconductor、oil、chemical combination and medication, most liquid has been polluted and poisonous. So the most problem is how to produce、storage and transport these production. With the development of intelligent architecture, people are more and more concerning the security of circumstance and their architecture. Now besides the basic guard against theft and fireproofing, the security of circumstance is an important factor especially the problem of liquid leakage in their lives. The leakage of liquid has been bringing the trouble in the environment and architecture. Without discovering and eliminating the leakiness of these place in time, which may result in great loss, such as the damage to equipment 、the loss of important data and so on. Therefore, it is most important to check the pipeline to prevent the leakage. We mainly talked about the forward data channel of the automatic checking system. Here is based on the change of cable resistance to estimate where had taken leakage. In normal state, the value of resistance is very great. When the leakage had taken, the value of resistance will change. So the voltage of output will change. According to the law of Ohm, the resistance is relevant to the length of the cable. To calculate the voltage, we may know where leaked. But this voltage is very low, so we should enlarge it and then send to A/D. By the disposal of MCU, which may alert us and tell us where leaked. Key word: Liquid leak；Enlarge circuit；Telepathy cable 目录 摘 要 1 第一章 绪论 3 1.1 引言 4 1.2 液体泄漏检测的背景和现状 5 1.3 本项目的研究思路和方法 6 第二章 液体泄漏检测系统原理及需求分析 8 2.1 系统设计原理 8 2.2 系统可行性分析 10 2.3 系统性能描述 12 2.4 14 2.5 15 本章小结 17 第三章 泄漏检测的系统的总体设计 18 3.1 课题基本任务及要求 18 3.2 系统模块方案设计 19 3.3 系统方案分析 20 3.4 系统方案比较 23 本章小结 26 第四章 系统方案的硬件设计 27 4.1 数据采集及发送原理图 27 4.2 数据接收及处理原理图 27 4