| 单脉冲喇曼散射技术测量高压燃烧场组分浓度 |
| |
| 引用本文： | 张振荣,胡志云,刘晶儒,叶景峰,黄梅生,王盛,张立荣,赵新艳.单脉冲喇曼散射技术测量高压燃烧场组分浓度[J].光学技术,2009,35(2). |
| |
| 作者姓名： | 张振荣 胡志云 刘晶儒 叶景峰 黄梅生 王盛 张立荣 赵新艳 |
| |
| 作者单位： | 西北核技术研究所,西安,710024 |
| |
| 摘 要： | 介绍了自发喇曼散射技术的基本原理、实验方法及对高压燃烧场的测量结果。利用Nd:YAG激光的三倍频输出激发振动喇曼散射,在单脉冲条件下测量了高压模拟燃烧室内不同化学配比条件下以氢气-空气预混燃烧场为主要组分(N2,O2,H2O,H2等)的喇曼光谱,获得了主要组分浓度随燃烧时间、燃烧场压力的变化规律。实验中利用偏振技术有效地提高了信噪比。通过优化激光光束形状及光路设计避免了等离子体光谱对喇曼信号的干扰。
|
| 关 键 词： | 燃烧诊断 喇曼散射 组分 高压 单脉冲 |
Measurements of major species in a high-pressure combustion using single-pulse spontaneous Raman scattering |
| |
| ZHANG Zhen-rong,HU Zhi-yun,LIU Jing-ru,YE Jing-feng,HUANG Mei-sheng,WANG Sheng,ZHANG Li-rong,ZHAO Xin-yan.Measurements of major species in a high-pressure combustion using single-pulse spontaneous Raman scattering[J].Optical Technique,2009,35(2). |
| |
| Authors: | ZHANG Zhen-rong HU Zhi-yun LIU Jing-ru YE Jing-feng HUANG Mei-sheng WANG Sheng ZHANG Li-rong ZHAO Xin-yan |
| |
| Institution: | Northwest Institute of Nuclear Technology;Xi'an 710024;China |
| |
| Abstract: | The principle of spontaneous vibrational Raman scattering(SVRS) is introduced.Raman scattering is produced by Nd:YAG laser in a high-pressure hydrogen-air combustion.Raman spectra are recorded for lean,stichiometric,and rich flames.Concentrations of major species(N2,O2,H2O,H2) are measured in flames at different time.The concentration changes with the pressure of combustion at different time is analysed.Polarization technique is used for impove the ratio of signal-to-noise,and the laser beam shape is optimi... |
| |
| Keywords: | combustion diagnostics Raman scattering concentration high-pressure single-pulse |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
