中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
A Dual-Laser Sensor Based on Off-Axis Integrated Cavity Output Spectroscopy and Time-Division Multiplexing Method

文献类型:期刊论文

作者Wang, Kunyang1,2; Shao, Ligang2; Chen, Jiajin2; Wang, Guishi2; Liu, Kun2; Tan, Tu2; Mei, Jiaoxu2; Chen, Weidong3; Gao, Xiaoming2
刊名SENSORS
出版日期2020-11-01
卷号20
关键词OA-ICOS dual-laser sensor time-division multiplexing carbon dioxide methane
DOI10.3390/s20216192
通讯作者Gao, Xiaoming(xmgao@aiofm.ac.cn)
英文摘要In this article, a compact dual-laser sensor based on an off-axis integrated-cavity output spectroscopy and time-division multiplexing method is reported. A complete dual-channel optical structure is developed and integrated on an optical cavity, which allows two distributed feedback (DFB) lasers operating at wavelengths of 1603 nm and 1651 nm to measure the concentration of CO2 and CH4, simultaneously. Performances of the dual-laser sensor are experimentally evaluated by using standard air (with a mixture of CO2 and CH4). The limit of detection (LoD) is 0.271 ppm and 1.743 ppb at a 20 s for CO2 and CH4, respectively, and the noise equivalent absorption sensitivities are 2.68 x 10(-10) cm(-1) Hz(-1/2) and 3.88 x 10(-10) cm(-1) Hz(-1/2), respectively. Together with a commercial instrument, the dual-laser sensor is used to measure CO2 and CH4 concentration over 120 h and verify the regular operation of the sensor for the detection of ambient air. Furthermore, a first-order exponential moving average algorithm is implemented as an effective digital filtering method to estimate the gas concentration.
WOS关键词ENHANCED ABSORPTION-SPECTROSCOPY ; DIODE-LASER ; WAVELENGTH MODULATION ; WHITE-NOISE ; TRANSITIONS ; PARAMETERS ; DESIGN ; WATER ; H2O ; CO
资助项目National Key Research and Development Program of China[2016YFC0303900] ; National Key Research and Development Program of China[2017YFC0209700] ; National Natural Science Foundation of China (NSFC)[41730103]
WOS研究方向Chemistry ; Engineering ; Instruments & Instrumentation
语种英语
出版者MDPI
WOS记录号WOS:000589379500001
资助机构National Key Research and Development Program of China ; National Natural Science Foundation of China (NSFC)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/105179]  
专题中国科学院合肥物质科学研究院
通讯作者Gao, Xiaoming
作者单位1.Univ Sci & Technol China, Sci Isl Branch, Grad Sch, Hefei 230031, Anhui, Peoples R China
2.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei Inst Phys Sci, Hefei 230031, Anhui, Peoples R China
3.Univ Littoral Cote dOpale, Lab Physicochim Atmosphere, 189A,Av Maurice Schumann, F-59140 Dunkerque, France
推荐引用方式
GB/T 7714
Wang, Kunyang,Shao, Ligang,Chen, Jiajin,et al. A Dual-Laser Sensor Based on Off-Axis Integrated Cavity Output Spectroscopy and Time-Division Multiplexing Method[J]. SENSORS,2020,20.
APA Wang, Kunyang.,Shao, Ligang.,Chen, Jiajin.,Wang, Guishi.,Liu, Kun.,...&Gao, Xiaoming.(2020).A Dual-Laser Sensor Based on Off-Axis Integrated Cavity Output Spectroscopy and Time-Division Multiplexing Method.SENSORS,20.
MLA Wang, Kunyang,et al."A Dual-Laser Sensor Based on Off-Axis Integrated Cavity Output Spectroscopy and Time-Division Multiplexing Method".SENSORS 20(2020).

入库方式: OAI收割

来源:合肥物质科学研究院

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