Analysis and Detection of a Target Gas System Based on TDLAS & LabVIEW
Abstract
This paper introduces detection techniques of target gas concentration based on infrared absorption spectrum method and the simulation of the gas detection system using LabVIEW. In this work, the harmonic detection is performed by wavelength modulation technique with a related frequency signal to cover the measured signal and get the gas absorption coefficient that can be analysed to give a gas concentration. A series of simulations are carried out to scan weak absorption lines and extract the second harmonic curve of the absorption spectrum of the target gas. The absorption and second harmonic curves are acquired by changing the parameters of the target gas concentration and line width. This work claims to be a contribution to the study and the comprehension of gas detection system based on tunable diode laser absorption spectroscopy and can serve as a basis for practical data acquisition.
Keywords:
infrared absorption spectrum, simulation system, second harmonic, phase-locked amplifier, TDLAS, LabVIEWDownloads
References
L. Shuqin, The Analysis and Detection System of CO2 Gas Based on TDLAS, Harbin Industrial University, 2013 (in Chinese)
L. Ning, W. Fei, Y. Jianhua, M. Zengyi, C. Kefa, “Gas concentration measuremen based on tunable semiconductor laser absorption spectrum technology”, Proceedings of the CSEE, Vol. 25, No. 15, pp. 121-126, 2005
J. L. Han, L. Jianguo, Y. B. He, J. F. He, L. Yau, Z. Yu, J. Ying, S. Yuan, R. F. Kan, “Simulation and analysis of second harmonic signal of the tunable diode laser absorption spectroscopy”, Spectroscopy and Spectral Analysis, Vol. 33, No. 4, pp. 881-885, 2013 (in Chinese)
G. Lijun, Research on Methane Detection Based on the Principle of Near Infrared Absorption, Hebei Yanshan University, 2008 (in Chinese)
S. Hui, Multi-component gas analyzer based on infrared absorption theory, Harbin Industrial University, 2009 (in Chinese)
L. Tongxing, L. Yiqun, The principle and application of laser spectroscopy, Anhui University of Science and Technology of China Press, 2006 (in Chinese)
X. F. Nan, Y. Zhang, M. Yu, “Laser gas telemetry test system automation test software design”, Optical Instruments, Vol. 37, No. 3, pp. 210-213, 2016
M. L. Cong, D. D. Sun, Y. D. Wang, “Application of Logarithmic Transformation-Wavelength Modulation Spectroscopy in Gas Detection”, Infrared and Laser Engineering, Vol. 46, No. 2, pp. 1-6, 2017 DOI: https://doi.org/10.3788/IRLA201746.0223001
A. De Marcellis, G. Ferri, A. D’Amico, C. Di Natale, E. Martinelli, “A fully-analog lock-in amplifier with automatic phase alignment for accurate measurements of ppb gas concentrations”, IEEE Sensors Journal, Vol. 12, No. 5, pp. 1377-1383, 2012 DOI: https://doi.org/10.1109/JSEN.2011.2172602
S. M. Ahmed Ghaly, S. S. Al-Sowayan, “A high B1 field homogeneity generation using free element elliptical four-coil system”, American Journal of Applied Sciences, Vol. 11, No. 4, pp. 534-540, 2014 DOI: https://doi.org/10.3844/ajassp.2014.534.540
S. M. Ahmed Ghaly, K. A. Al-Snaie, S. S. Al-Sowayan, “Design and Testing of Radiofrequency Spherical Four Coils”, Modern Applied Science Jounal, Vol. 10, No. 5, pp. 186-193, 2016 DOI: https://doi.org/10.5539/mas.v10n5p186
S. M. Ahmed Ghaly, K. A. Al-Snaie, O. K. Mohammad, “Spherical and Improved Helmholtz Coil with High B1 Homogeneity for Magnetic Resonance Imaging”, American Journal of Applied Sciences, Vol. 13, No. 12, pp. 1413-1418. 2016 DOI: https://doi.org/10.3844/ajassp.2016.1413.1418
H. F. Liu, B. Li, Q. X. He, J. M. Dang, H. Y. Yu, Z. T. Zheng, Y. D. Wang, J. Q. Pan, “Development of digital orthogonal lock-in amplifier and its application in methane detection”, Acta Photonica Sinica, Vol. 45, No. 4, pp. 0423004-1 - 0423004-6, 2016 (in Chinese) DOI: https://doi.org/10.3788/gzxb20164504.0423004
C. J. Kalkman, “LabVIEW A software system for data acquisition, data analysis, and instrument control”, Journal of Clinical Monitoring, Vol. 11, No. 1, pp. 51-58, 1995 DOI: https://doi.org/10.1007/BF01627421
A. Gani, M. J. E. Salami, “A LabVIEW based data acquisition system for vibration monitoring and analysis”, Student Conference on Research and Development, Shah Alam, Malaysia, July 17, 2002
Y. Huo, W. Fan, “Application of harmonic detection technology in methane telemetry”, Journal of Physics: Conference Series, Vol. 887, ArticleID 012020, 2017 DOI: https://doi.org/10.1088/1742-6596/887/1/012020
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