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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| Format: | Article |
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MDPI AG
2021-11-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/22/10936 |
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| author | Renjie Li Fei Li Xin Lin Xilong Yu |
| author_facet | Renjie Li Fei Li Xin Lin Xilong Yu |
| author_sort | Renjie Li |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-03-10T05:43:28Z |
| format | Article |
| id | doaj.art-afb3d17b50524403833ddef2b397e712 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T05:43:28Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-afb3d17b50524403833ddef2b397e7122023-11-22T22:21:12ZengMDPI AGApplied Sciences2076-34172021-11-0111221093610.3390/app112210936Error Analysis of Integrated Absorbance for TDLAS in a Nonuniform Flow FieldRenjie Li0Fei Li1Xin Lin2Xilong Yu3State Key Laboratory of High Temperature Gas Dynamics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, ChinaState Key Laboratory of High Temperature Gas Dynamics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, ChinaState Key Laboratory of High Temperature Gas Dynamics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, ChinaState Key Laboratory of High Temperature Gas Dynamics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, ChinaAs 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.https://www.mdpi.com/2076-3417/11/22/10936TDLASintegrated absorbanceerror analysis |
| spellingShingle | Renjie Li Fei Li Xin Lin Xilong Yu Error Analysis of Integrated Absorbance for TDLAS in a Nonuniform Flow Field Applied Sciences TDLAS integrated absorbance error analysis |
| title | 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_short | 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 |
| topic | TDLAS integrated absorbance error analysis |
| url | https://www.mdpi.com/2076-3417/11/22/10936 |
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