51单片机天然气水合物光透过率检测系统设计
关键词： 天然水合物 光透过率 光电检测 光电转换 单片机
毕业设计说明书（论文）外文摘要
Title Design of the Natural Gas Hydrate Light Transmittance Detection system
Abstract
Natural gas hydrate is referred to as "the energy of future" which is paid more and more attention in the recent years. The phase change of it can affect the light-transmittance which can be used to detect the generation of it. In this dissertation, The detecting system of light-transmittance is designed for this. It consists of source: the maximum power up to 100W, white light optical cold light source brightness adjustablethe light signal receiving end: using convergent beam, optical signal receiving as much as possible, in order to meet the requirements of the photoelectric conversion the photoelectric conversion circuit: a dual structure in the measurement of the transmission light intensity detection, at the same time, measuring the reference light to compensate the fluctuation of the light source, so as to compensate the effect of light source fluctuation on test results within a certain range.the signal collection and processing: signal processor AT89C51, A/D convertor, and LCD display.
Keywords natural gas hydrate light transmission rate photoelectric detection The photoelectric conversion Single chip microcomputer
目 录
1 绪论 1
1.1 研究背景及意义 1
1.2 研究现状 1
1.3 本文研究内容 1
2 系统设计 3
2.1光电检测系统设计 3
2.1.1 光源的选择 3
2.1.2 光信号接收端的设计 4
2.1.3 光电转换电路设计 4
2.2 单片机数据收集和处理 5
2.2.1 单片机功能介绍 5
2.2.2 单片机硬件设计 5
结论 12
致谢 13
参考文献 14
附录1 16
附录2 18
1 绪论
1.1 研究背景及意义
天然水合物是甲烷和水在一定环境条件下生成的固体化合物，外形和平时常见的冰类似。极易燃烧，原因是含有甲烷等大量易燃烧的气体。同等条件下，可燃冰燃烧产生的能量比煤，石油，天然气要多出数十倍，而且充分燃烧后只产生水和二氧化碳，避免了环境污染还有残渣处理的问题，因此被称为“未来的能源”。天然气因此具有高能，低污染等特点，是世界各国重点开发的潜在能源之一。中国作为目前四个有能力对天然水合物进行开发的国家之一，对该物质的重视可想而知。