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双色激光诱导炽光法结合光腔衰荡光谱技术测量碳烟颗粒的研究

Measurement of Soot Particles by Two-Color Laser-Induced Incandescence Method Combined with Cavity Ring-Down Spectroscopy

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摘要

基于激光诱导炽光(LII)法和光腔衰荡光谱(CRDS)技术, 搭建了用于研究火焰碳烟颗粒的测量平台, 并对其性能参数进行了表征。碳烟颗粒路径积分衰减系数测量结果表明, 双色LII测试系统和CRDS系统相互独立。同时运行双色LII和CRDS系统, 测量得到的路径积分衰减系数随着火焰高度的增加先增大后减小, 两个系统的测量结果具有较好的相关性。通过优化拟合模型及去除系统噪音, 获得了较好的光腔衰荡信号拟合结果。

Abstract

Based on laser-induced incandescence (LII) and cavity ring-down spectroscopy (CRDS), we establish a measurement setup for the study of flame soot particles, and characterize the performance parameters. The measurement results of the path-integrated attenuation coefficient of soot particles show that the two-color LII test system and the CRDS system are independent of each other. When the two-color LII and CRDS systems are opened at the same time, the measured path-integrated attenuation coefficient increases first and then decreases with the increase of the height above the burner, and the measurement results of the two systems have good correlation. By optimizing the fitting model and removing the system noise, we obtain a better cavity ring-down signal fitting results.

Newport宣传-MKS新实验室计划
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中图分类号:TN249

DOI:10.3788/cjl201946.0304002

所属栏目:测量与计量

基金项目:国家自然科学基金(91544225,51676130,51776129)

收稿日期:2018-09-14

修改稿日期:2018-11-03

网络出版日期:2018-12-04

作者单位    点击查看

王孟:上海理工大学能源与动力工程学院上海市动力工程多相流动与传热重点实验室, 上海 200093
张焰峰:上海理工大学能源与动力工程学院上海市动力工程多相流动与传热重点实验室, 上海 200093
陈军:上海理工大学能源与动力工程学院上海市动力工程多相流动与传热重点实验室, 上海 200093
杨荟楠:上海理工大学能源与动力工程学院上海市动力工程多相流动与传热重点实验室, 上海 200093
苏明旭:上海理工大学能源与动力工程学院上海市动力工程多相流动与传热重点实验室, 上海 200093
蔡小舒:上海理工大学能源与动力工程学院上海市动力工程多相流动与传热重点实验室, 上海 200093

联系人作者:陈军(j.chen@usst.edu.cn)

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引用该论文

Wang Meng,Zhang Yanfeng,Chen Jun,Yang Huinan,Su Mingxu,Cai Xiaoshu. Measurement of Soot Particles by Two-Color Laser-Induced Incandescence Method Combined with Cavity Ring-Down Spectroscopy[J]. Chinese Journal of Lasers, 2019, 46(3): 0304002

王孟,张焰峰,陈军,杨荟楠,苏明旭,蔡小舒. 双色激光诱导炽光法结合光腔衰荡光谱技术测量碳烟颗粒的研究[J]. 中国激光, 2019, 46(3): 0304002

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