A Non-Source Optical Fiber Sensor for Multi-Point Methane Detection
Abstract
:1. Introduction
2. Methodology
2.1. TDLAS Theory
2.2. Wavelength Modulation and Harmonic Detection Theory
2.3. Experimental Setup Design
2.3.1. Multi-Channal Optical Fiber Methane Gas Sensor
2.3.2. Methane Probe
3. Results and Discussion
3.1. Methane Concentration Measurement in Full Range
3.2. The Performances of the Methane Sensor
3.3. Methane Detection at Different Locations
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Standard Concentration (%) | DAS | WMS | DAS/WMS | |||||
---|---|---|---|---|---|---|---|---|
Measurement Concentration (%) | Error (%) | AVG (%) | Measurement Concentration (%) | Error (%) | AVG (%) | Error (%) | AVG (%) | |
0 | 0 | 0 | 8.22 | 0.02 | 2.0 | 12.69 | 2.0 | 1.84 |
0.5 | 0.29 | 42.08 | 0.54 | 8.07 | 8.07 | |||
1.5 | 1.22 | 18.67 | 1.50 | 0.14 | 0.14 | |||
2.0 | 1.98 | 1.00 | 2.01 | 0.5 | 0.5 | |||
8.5 | 8.40 | 1.18 | 8.25 | 2.94 | 1.18 | |||
20 | 19.68 | 1.61 | 17.23 | 13.85 | 1.61 | |||
35 | 34.83 | 0.49 | 25.84 | 26.17 | 0.49 | |||
70 | 69.49 | 0.73 | 36.50 | 47.86 | 0.73 |
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Ma, L.; Liu, X.; Si, G. A Non-Source Optical Fiber Sensor for Multi-Point Methane Detection. Sensors 2024, 24, 5031. https://doi.org/10.3390/s24155031
Ma L, Liu X, Si G. A Non-Source Optical Fiber Sensor for Multi-Point Methane Detection. Sensors. 2024; 24(15):5031. https://doi.org/10.3390/s24155031
Chicago/Turabian StyleMa, Li, Xu Liu, and Ganshang Si. 2024. "A Non-Source Optical Fiber Sensor for Multi-Point Methane Detection" Sensors 24, no. 15: 5031. https://doi.org/10.3390/s24155031