Error Analysis of Integrated Absorbance for TDLAS in a Nonuniform Flow Field

As an effective optical diagnosis method, tunable diode-laser absorption spectroscopy (TDLAS) has increasingly moved to examine nonuniform flows, such as two-dimensional combustion diagnosis. To investigate the effect of nonuniformity along the line of sight in a measurement using TDLAS, the integra...

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Autores principales:	Renjie Li, Fei Li, Xin Lin, Xilong Yu
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	TDLAS integrated absorbance error analysis Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/afb3d17b50524403833ddef2b397e712
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spelling	oai:doaj.org-article:afb3d17b50524403833ddef2b397e7122021-11-25T16:41:28ZError Analysis of Integrated Absorbance for TDLAS in a Nonuniform Flow Field10.3390/app1122109362076-3417https://doaj.org/article/afb3d17b50524403833ddef2b397e7122021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/22/10936https://doaj.org/toc/2076-3417As an effective optical diagnosis method, tunable diode-laser absorption spectroscopy (TDLAS) has increasingly moved to examine nonuniform flows, such as two-dimensional combustion diagnosis. To investigate the effect of nonuniformity along the line of sight in a measurement using TDLAS, the integrated absorbance (IA, the key intermediate quantity in TDLAS) error was quantified. The error distribution is obtained from the line-shape parameters through the comprehensive analysis of the line-shape function and the fitting method. The effects of the fitting function and the absorption line overlap are also considered. A general method for estimating the error is given. The work illustrates the applicability of TDLAS technology in nonuniform flow fields and provides input parameters for the evaluation of tunable diode laser absorption tomography error.Renjie LiFei LiXin LinXilong YuMDPI AGarticleTDLASintegrated absorbanceerror analysisTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10936, p 10936 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	TDLAS integrated absorbance error analysis Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	TDLAS integrated absorbance error analysis Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Renjie Li Fei Li Xin Lin Xilong Yu Error Analysis of Integrated Absorbance for TDLAS in a Nonuniform Flow Field
description	As an effective optical diagnosis method, tunable diode-laser absorption spectroscopy (TDLAS) has increasingly moved to examine nonuniform flows, such as two-dimensional combustion diagnosis. To investigate the effect of nonuniformity along the line of sight in a measurement using TDLAS, the integrated absorbance (IA, the key intermediate quantity in TDLAS) error was quantified. The error distribution is obtained from the line-shape parameters through the comprehensive analysis of the line-shape function and the fitting method. The effects of the fitting function and the absorption line overlap are also considered. A general method for estimating the error is given. The work illustrates the applicability of TDLAS technology in nonuniform flow fields and provides input parameters for the evaluation of tunable diode laser absorption tomography error.
format	article
author	Renjie Li Fei Li Xin Lin Xilong Yu
author_facet	Renjie Li Fei Li Xin Lin Xilong Yu
author_sort	Renjie Li
title	Error Analysis of Integrated Absorbance for TDLAS in a Nonuniform Flow Field
title_short	Error Analysis of Integrated Absorbance for TDLAS in a Nonuniform Flow Field
title_full	Error Analysis of Integrated Absorbance for TDLAS in a Nonuniform Flow Field
title_fullStr	Error Analysis of Integrated Absorbance for TDLAS in a Nonuniform Flow Field
title_full_unstemmed	Error Analysis of Integrated Absorbance for TDLAS in a Nonuniform Flow Field
title_sort	error analysis of integrated absorbance for tdlas in a nonuniform flow field
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/afb3d17b50524403833ddef2b397e712
work_keys_str_mv	AT renjieli erroranalysisofintegratedabsorbancefortdlasinanonuniformflowfield AT feili erroranalysisofintegratedabsorbancefortdlasinanonuniformflowfield AT xinlin erroranalysisofintegratedabsorbancefortdlasinanonuniformflowfield AT xilongyu erroranalysisofintegratedabsorbancefortdlasinanonuniformflowfield
_version_	1718413097068134400

Error Analysis of Integrated Absorbance for TDLAS in a Nonuniform Flow Field

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