Research on Flame Temperature Measurement Technique Combining Spectral Analysis and Two-Color Pyrometry
This work presents a method for measuring flame temperatures through an imaging technique that combines spectral analysis with two-color pyrometry. Initially, we employed Laser-Induced Breakdown Spectroscopy (LIBS) to analyze the radiation spectrum of nitrocellulose, selecting 694 nm and 768 nm as t...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-05-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/15/11/5864 |
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| author | Pan Pei Xiaojian Hao Shenxiang Feng Tong Wei Chenyang Xu |
| author_facet | Pan Pei Xiaojian Hao Shenxiang Feng Tong Wei Chenyang Xu |
| author_sort | Pan Pei |
| collection | DOAJ |
| description | This work presents a method for measuring flame temperatures through an imaging technique that combines spectral analysis with two-color pyrometry. Initially, we employed Laser-Induced Breakdown Spectroscopy (LIBS) to analyze the radiation spectrum of nitrocellulose, selecting 694 nm and 768 nm as the two spectral lines for temperature measurement. Subsequently, we constructed a temperature measurement system utilizing two sCMOS cameras and conducted calibration within the range of 600 to 1000 °C, achieving a maximum temperature measurement uncertainty of 3.43%. Finally, we successfully performed two-dimensional temperature field detection and imaging of nitrocellulose flames of varying qualities, achieving a flame image resolution of 2048 (H) × 2048 (V). In comparison to traditional two-color infrared thermometers and Tunable Diode Laser Absorption Spectroscopy (TDLAS) technology, the maximum relative temperature measurement error was 2.1%. This work provides technical insights into the development of high-resolution, low-cost flame temperature imaging technology applicable across a wide range of fields. |
| format | Article |
| id | doaj-art-430357d8dee14777ba205b2db86f7549 |
| institution | OA Journals |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-430357d8dee14777ba205b2db86f75492025-08-20T02:23:06ZengMDPI AGApplied Sciences2076-34172025-05-011511586410.3390/app15115864Research on Flame Temperature Measurement Technique Combining Spectral Analysis and Two-Color PyrometryPan Pei0Xiaojian Hao1Shenxiang Feng2Tong Wei3Chenyang Xu4State key Laboratory of Extreme Environment Optoelectronic Dynamic Testing Technology and Instrument, North University of China, Taiyuan 030051, ChinaState key Laboratory of Extreme Environment Optoelectronic Dynamic Testing Technology and Instrument, North University of China, Taiyuan 030051, ChinaState key Laboratory of Extreme Environment Optoelectronic Dynamic Testing Technology and Instrument, North University of China, Taiyuan 030051, ChinaState key Laboratory of Extreme Environment Optoelectronic Dynamic Testing Technology and Instrument, North University of China, Taiyuan 030051, ChinaState key Laboratory of Extreme Environment Optoelectronic Dynamic Testing Technology and Instrument, North University of China, Taiyuan 030051, ChinaThis work presents a method for measuring flame temperatures through an imaging technique that combines spectral analysis with two-color pyrometry. Initially, we employed Laser-Induced Breakdown Spectroscopy (LIBS) to analyze the radiation spectrum of nitrocellulose, selecting 694 nm and 768 nm as the two spectral lines for temperature measurement. Subsequently, we constructed a temperature measurement system utilizing two sCMOS cameras and conducted calibration within the range of 600 to 1000 °C, achieving a maximum temperature measurement uncertainty of 3.43%. Finally, we successfully performed two-dimensional temperature field detection and imaging of nitrocellulose flames of varying qualities, achieving a flame image resolution of 2048 (H) × 2048 (V). In comparison to traditional two-color infrared thermometers and Tunable Diode Laser Absorption Spectroscopy (TDLAS) technology, the maximum relative temperature measurement error was 2.1%. This work provides technical insights into the development of high-resolution, low-cost flame temperature imaging technology applicable across a wide range of fields.https://www.mdpi.com/2076-3417/15/11/5864sCMOS sensorsoptical imagingtemperature measurementspectral analysistwo-color pyrometry |
| spellingShingle | Pan Pei Xiaojian Hao Shenxiang Feng Tong Wei Chenyang Xu Research on Flame Temperature Measurement Technique Combining Spectral Analysis and Two-Color Pyrometry Applied Sciences sCMOS sensors optical imaging temperature measurement spectral analysis two-color pyrometry |
| title | Research on Flame Temperature Measurement Technique Combining Spectral Analysis and Two-Color Pyrometry |
| title_full | Research on Flame Temperature Measurement Technique Combining Spectral Analysis and Two-Color Pyrometry |
| title_fullStr | Research on Flame Temperature Measurement Technique Combining Spectral Analysis and Two-Color Pyrometry |
| title_full_unstemmed | Research on Flame Temperature Measurement Technique Combining Spectral Analysis and Two-Color Pyrometry |
| title_short | Research on Flame Temperature Measurement Technique Combining Spectral Analysis and Two-Color Pyrometry |
| title_sort | research on flame temperature measurement technique combining spectral analysis and two color pyrometry |
| topic | sCMOS sensors optical imaging temperature measurement spectral analysis two-color pyrometry |
| url | https://www.mdpi.com/2076-3417/15/11/5864 |
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