CT-TDLAS测量燃烧火焰二维温度分布  

Measurement of 2D Temperature Distribution of Flame Using CT-TDLAS

作　　者：周王峥 王珍珍 严俊杰[1] 张丹[1] 辻本一真 神本崇博 出口祥啓 ZHOU Wang-zheng;WANG Zhen-zhen;YAN Jun-jie;ZHANG dan;TSUJIMOTO Kazuma;KAMIMOTO Takahiro;DEGUCHI Yoshihiro(State Key Laboratory of Multiphase Flow in Power Engineering,Xi’an Jiaotong University,Xi’an 710049,China;Graduate School of Technology,Industrial and Social Sciences,Tokushima University,Tokushima,770-8506,Japan)

机构地区：[1]西安交通大学多相流国家重点实验室,西安710049 [2]德岛大学大学院社会产业理工学研究部,日本德岛770-8506

出　　处：《光子学报》2019年第12期47-55,共9页Acta Photonica Sinica

基　　金：国家重点研究发展计划(No.2018YFBD604303)~~

摘　　要：结合可调谐半导体激光吸收光谱技术与计算机断层扫描技术,通过获得与实验值最适应的拟合光谱,重构本生灯燃烧火焰二维温度分布.以零均值归一化互相关和误差平方和作为指标,分析了32路测量组件的二维重构精度.结果表明,零均值归一化互相关达到0.994,误差平方和达到0.00086.采用32路测量系统实现了本生灯火焰二维温度的测量,并与热电偶测量结果进行对比.结果表明,两者之间的温度分布趋势相同,可调谐半导体激光吸收光谱测量具有更高的精度和分辨率,验证了可调谐半导体激光吸收光谱技术结合计算机断层扫描技术在测量二维火焰温度分布的可行性与精确性.Tunable Diode Laser Absorption Spectroscopy(TDLAS)technology and Computed Tomography(CT)technology were combined to reconstruct two-dimensional temperature distribution of bunsen burner flame through getting the most fitting spectrum.Zeromean Normalization Cross Correlation(ZNCC)value and Sum of Squared Difference(SSD)value were used as target to analyze accuracy of 32-path reconstruct temperature distribution.And ZNCC value comes to 0.994,SSD value comes to 0.00086.32-path CT-TDLAS system was designed and applied to measure the two-dimensional temperature distribution of Bunsen burner flame,and compared with the results of thermocouple.The results show that the temperature distribution trends between thermocouple and TDLAS are same while CT-TDLAS has higher precision and resolution.The feasibility and accuracy of reconstruction using tunable diode laser absorption spectroscopy technology and computed tomography technology is demonstrated.

关 键 词：光谱学 可调谐半导体激光吸收光谱 计算机断层诊断术 燃烧火焰 二维温度分布 

分 类 号：O433.1[机械工程—光学工程]