A NDIR Mid-Infrared Methane Sensor with a Compact Pentahedron Gas-Cell
In order to improve the performance of the large divergence angle mid-infrared source in gas sensing, this paper aims at developing a methane (CH<sub>4</sub>) sensor with non-dispersive infrared (NDIR) technology using a compact pentahedron gas-cell. A paraboloid concentrator, two biconv...
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MDPI AG
2020-09-01
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| Online Access: | https://www.mdpi.com/1424-8220/20/19/5461 |
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| author | Weilin Ye Zihan Tu Xupeng Xiao Alessandro Simeone Jingwen Yan Tao Wu Fupei Wu Chuantao Zheng Frank K. Tittel |
| author_facet | Weilin Ye Zihan Tu Xupeng Xiao Alessandro Simeone Jingwen Yan Tao Wu Fupei Wu Chuantao Zheng Frank K. Tittel |
| author_sort | Weilin Ye |
| collection | DOAJ |
| description | In order to improve the performance of the large divergence angle mid-infrared source in gas sensing, this paper aims at developing a methane (CH<sub>4</sub>) sensor with non-dispersive infrared (NDIR) technology using a compact pentahedron gas-cell. A paraboloid concentrator, two biconvex lenses and five planar mirrors were used to set up the pentahedron structure. The gas cell is endowed with a 170 mm optical path length with a volume of 19.8 mL. The mathematical model of the cross-section and the three-dimension spiral structure of the pentahedron gas-cell were established. The gas-cell was integrated with a mid-infrared light source and a detector as the optical part of the sensor. Concerning the electrical part, a STM32F429 was employed as a microcontroller to generate the driving signal for the IR source, and the signal from the detector was sampled by an analog-to-digital converter. A static volumetric method was employed for the experimental setup, and 20 different concentration CH<sub>4</sub> samples were prepared to study the sensor’s evaluation, which revealed a 1σ detection limit of 2.96 parts-per-million (ppm) with a 43 s averaging time. |
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| format | Article |
| id | doaj.art-7e195b1df7594448b52e4d199596f6d0 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T16:06:43Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
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| series | Sensors |
| spelling | doaj.art-7e195b1df7594448b52e4d199596f6d02023-11-20T14:48:48ZengMDPI AGSensors1424-82202020-09-012019546110.3390/s20195461A NDIR Mid-Infrared Methane Sensor with a Compact Pentahedron Gas-CellWeilin Ye0Zihan Tu1Xupeng Xiao2Alessandro Simeone3Jingwen Yan4Tao Wu5Fupei Wu6Chuantao Zheng7Frank K. Tittel8Key Laboratory of Intelligent Manufacturing Technology, Ministry of Education, College of Engineering, Shantou University, 243 Daxue Road, Shantou 515063, ChinaKey Laboratory of Intelligent Manufacturing Technology, Ministry of Education, College of Engineering, Shantou University, 243 Daxue Road, Shantou 515063, ChinaKey Laboratory of Intelligent Manufacturing Technology, Ministry of Education, College of Engineering, Shantou University, 243 Daxue Road, Shantou 515063, ChinaKey Laboratory of Intelligent Manufacturing Technology, Ministry of Education, College of Engineering, Shantou University, 243 Daxue Road, Shantou 515063, ChinaKey Laboratory of Intelligent Manufacturing Technology, Ministry of Education, College of Engineering, Shantou University, 243 Daxue Road, Shantou 515063, ChinaKey Laboratory of Intelligent Manufacturing Technology, Ministry of Education, College of Engineering, Shantou University, 243 Daxue Road, Shantou 515063, ChinaKey Laboratory of Intelligent Manufacturing Technology, Ministry of Education, College of Engineering, Shantou University, 243 Daxue Road, Shantou 515063, ChinaState Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, ChinaDepartment of Electrical and Computer Engineering, Rice University, 6100 Main Street, Houston, TX 77005, USAIn order to improve the performance of the large divergence angle mid-infrared source in gas sensing, this paper aims at developing a methane (CH<sub>4</sub>) sensor with non-dispersive infrared (NDIR) technology using a compact pentahedron gas-cell. A paraboloid concentrator, two biconvex lenses and five planar mirrors were used to set up the pentahedron structure. The gas cell is endowed with a 170 mm optical path length with a volume of 19.8 mL. The mathematical model of the cross-section and the three-dimension spiral structure of the pentahedron gas-cell were established. The gas-cell was integrated with a mid-infrared light source and a detector as the optical part of the sensor. Concerning the electrical part, a STM32F429 was employed as a microcontroller to generate the driving signal for the IR source, and the signal from the detector was sampled by an analog-to-digital converter. A static volumetric method was employed for the experimental setup, and 20 different concentration CH<sub>4</sub> samples were prepared to study the sensor’s evaluation, which revealed a 1σ detection limit of 2.96 parts-per-million (ppm) with a 43 s averaging time.https://www.mdpi.com/1424-8220/20/19/5461infrared spectroscopymid-infrared sensorNDIRpentahedron gas-cell |
| spellingShingle | Weilin Ye Zihan Tu Xupeng Xiao Alessandro Simeone Jingwen Yan Tao Wu Fupei Wu Chuantao Zheng Frank K. Tittel A NDIR Mid-Infrared Methane Sensor with a Compact Pentahedron Gas-Cell Sensors infrared spectroscopy mid-infrared sensor NDIR pentahedron gas-cell |
| title | A NDIR Mid-Infrared Methane Sensor with a Compact Pentahedron Gas-Cell |
| title_full | A NDIR Mid-Infrared Methane Sensor with a Compact Pentahedron Gas-Cell |
| title_fullStr | A NDIR Mid-Infrared Methane Sensor with a Compact Pentahedron Gas-Cell |
| title_full_unstemmed | A NDIR Mid-Infrared Methane Sensor with a Compact Pentahedron Gas-Cell |
| title_short | A NDIR Mid-Infrared Methane Sensor with a Compact Pentahedron Gas-Cell |
| title_sort | ndir mid infrared methane sensor with a compact pentahedron gas cell |
| topic | infrared spectroscopy mid-infrared sensor NDIR pentahedron gas-cell |
| url | https://www.mdpi.com/1424-8220/20/19/5461 |
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