摘 要：人们一方面享受经济和现代工业蓬勃发展带来的便利，另一方面又不得不面对日益严重的环境和生态问题。因此，精确且高效的检测手段和检测仪器被社会迫切需求。乙烯作为常见气体之一。它对环境等方面的危害不容忽视。乙烯被确定为在地层表面形成臭氧的首要污染物。它能导致光化学烟雾生成。光化学烟雾严重影响着人类的生活。乙烯也是一种植物激素。它在植物的生命周期中发挥关键作用。乙烯在工业生产安全过程中则被规定为煤层自燃的指示性气体。因此，对乙烯进行检测意义重大。可调谐半导体激光吸收光谱技术在环境检测中适应性良好并能抗干扰，同时满足痕量气体测量和时间分辨的需要。本课题利用中心波长位于1620 nm的 DFB型二极管激光器作为光源，基于可调谐二极管激光吸收光谱技术，搭建测量系统，在高压环境下对乙烯的测量方法进行研究。
关键词：乙烯 高压环境 可调谐半导体激光吸收光谱技术 DFB
Detection of Ethylene in High Pressure Environment
Abstract：On the one hand, people enjoy the convenience of economic and modern industries to flourish, on the other hand they had to face the increasingly serious environmental and ecological problems. Therefore, accurate and efficient means of detection and detection equipment are needed by the society urgently. Ethylene is one of the common gases. Its environmental and other aspects of the harm can not be ignored. Ethylene is identified as the primary pollutant that forms ozone on the surface of the formation. It can lead to photochemical smoke generation. Photochemical smog has a serious impact on human life. Ethylene is also a plant hormone. It plays a key role in the plant's life cycle. Ethylene in the industrial production safety process is defined as coal spontaneous combustion of the indicative gas. Therefore, the detection of ethylene is of great significance. Tunable diode laser absorption spectroscopy is well suited for environmental testing and is resistant to interference while meeting the needs of trace gas measurements and time resolution. In this paper, the DFB diode laser with the center wavelength at 1620 nm is used as the light source, and the measurement method of ethylene is studied under the high pressure environment based on the tunable diode laser absorption spectroscopy.
Key Words: Ethylene High pressure environment TDLAS DFB
目 录
摘 要 I
Abstract II
目 录 III
图清单 V
表清单 V
变量注释表 VI
1绪论 1
1.1 课题背景 1
1.2 检测气体的常见方法 1
1.3 TDLAS技术的研究现状 2
1.4 课题主要研究内容 3
2 TDLAS技术 4
2.1 TDLAS技术简介 4
2.2 TDLAS系统的检测原理 5
3 高压下检测乙烯的系统设计 6
3.1 系统的组成 6
3.2 系统的设计 9
3.3本章小结 10
4 实验与数据分析 11
4.1 实验操作和数据处理 11
4.2 不同压强下的信号对比 TDLAS高压环境下的乙烯检测方法:http://www.chuibin.com/wuli/lunwen_205944.html