Spatial resolved temperature measurement based on absorption spectroscopy using a single tunable diode laser

作     者：Xilong Yu Fei Li Lihong Chen Xinyu Zhang 

作者机构：Key Laboratory of High Temperature Gas DynamicsInstitute of Mechanics Chinese Academy of Sciences100190 Beijing China 

出 版 物：《Acta Mechanica Sinica》 (力学学报（英文版）)

年 卷 期：2010年第26卷第1期

页      面：147-149页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 

基　　金：supported by the National Natural Science Foundation of China(10772188) 

主　　题：WMS 2fTDLAS   Profile fitting Spatial resolved   Temperature measurement 

摘      要：A novel method based on wavelength-multiplexed line-of-sight absorption and profile fitting for nonuniform flow field measurement is reported. A wavelength scanning combing laser temperature and current modulation WMS scheme is used to implement the wavelength-multi- plexed-profile fitting method. Second harmonic （2f） signal of eight H20 transitions features near 7,170 cm^-1 are measured in one period using a single tunable diode laser. Spatial resolved temperature distribution upon a CH4/air premixed flat flame burner is obtained. The result validates the feasibility of strategy for non-uniform flow field diagnostics by means of WMS-2f TDLAS.