Temperature measurement based on adaptive dual-comb absorption spectral detection

被引：0

作者：

杨康文 ^{[1
]}

李海 ^{[1
]}

贡航 ^{[1
]}

沈旭玲 ^{[2
]}

郝强 ^{[1
]}

闫明 ^{[2
]}

黄坤 ^{[1
]}

曾和平 ^{[1
,2
]}

机构：

[1] Shanghai Key Laboratory of Modern Optical System, Engineering Research Center of Optical Instrument and System,Ministry of Education, School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology

[2] State Key Laboratory of Precision Spectroscopy, East China Normal University

来源：

Chinese Optics Letters | 2020年 / 18卷 / 05期

关键词：

ultrafast lasers; laser spectroscopy; absorption; temperature;

D O I：

暂无

中图分类号：

O433.1 [光谱测量];

学科分类号：

0703 ; 070302 ;

摘要：

We demonstrate absorption spectroscopy of water vapor for the determination of gas temperature. An adaptive dual-comb detection system is utilized to obtain precise spectroscopic data in a broadband range from 7143 to7240 cm-1 with a spectral resolution of 0.049 cm-1. The measured spectra are in accordance with the simulated results from the HITRAN（high-resolution transmission molecular absorption） database. Several measurements are investigated in the temperature range of 500–1000 K, revealing relative deviations of less than 5% compared to the thermocouple. This broadband and accurate adaptive dual-comb spectral detection method could be a powerful tool for non-invasive combustion diagnosis.

引用

页码：25 / 29

页数：5

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