原子发射双谱线测温机理研究

项目名称： 原子发射双谱线测温机理研究

项目编号： No.61473267

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 自动化技术、计算机技术

项目作者： 郝晓剑

作者单位： 中北大学

项目金额： 80万元

中文摘要： 在航空航天发动机、核工业和化爆试验中，有许多研究对象需要测量的是瞬态高温，其特点是温度高、变化快、常为不可重复的一次性过程。因此，测量条件非常恶劣，技术难度很高。目前国内现有的温度及温度场测量技术和设备都无法满足这些领域的高温测试需求，所以迫切需要探索新的瞬态高温测试方法，满足瞬态高温、高过载等恶劣环境下特种传感的测试亟需。本项目将对原子发射光谱双谱线测温技术进行理论和实验的深入研究，建模仿真原子发射光谱测温机理，应用激光诱导等离子体技术进行原子发射光谱的实验研究，分析各化学元素原子发射光谱，构建元素库；利用固态光电倍增管进行光电转换及信号调理电路的设计，研制适合狭小恶劣环境中使用的传感器探头；应用高温炉进行传感器静态标定，获得其静态灵敏度。研究成果将为高水平适用化瞬态高温测试仪器和测量系统的研究提供基础理论和关键技术。

中文关键词： 原子发射光谱；瞬态高温；固态光电倍增管；测试技术；激光诱导击穿光谱

英文摘要： In the fields of aviation, aerospace engines, nuclear industry and chemical explosives test, there are many researches need to measure the transient high temperature, whose characteristics are high temperature, change rapidly and the non-reproducibility. Therefore, the measurement conditions are very harsh and the technology is very difficult. At present, the current temperature measurement techniques and equipments are unable to meet the demands for the high temperature measurement in these fields. As a result, the new transient high temperature measurement method and the special sensor in the adverse environment of transient high temperature and high overload are urgently needed. This project showed the theory and experimental study on the temperature measurement technology of double line of atomic emission spectrum, modeling and simulation of the temperature measurement mechanism, the experimental study by laser induced plasma, analyzing the atomic emission spectrum of chemical elements, and building the scale elements libraries. Using solid-state photomultiplier for the circuit design of photoelectric conversion and signal condition, sensor probe adapting to narrow adverse environment is developed and calibrated by high temperature blackbody furnace. The static sensitivity of the sensor probe is obtained. Research results will provide the basic theory and key technology for the research of high-level and applicable transient high temperature measurement instruments and systems.

英文关键词： Atomic Emission Spectroscopy;Transient High Temperature;Solid-State Photomultiplier;Measurement Technology;Laser Induced Breakdown Spectrometry