Abstract
The potential and drawbacks of the apodized 2f/1f wavelength modulation spectroscopy are theoretically studied and experimentally characterized. We apply a near-infrared DFB-based laser spectrometer, tunable around the R(32) CO2 absorption line centered at 6369.408 cm−1. The performance of the apodized method is shown by minimizing the pressure deviation between the gauge and experimental pressures by using the beneficial effect of the scaling \(k\)-factor. This factor equalizes the experimental and simulated peak heights of the CO2 absorption trace. We found that when \(k\)-factor is varied up to its optimum value of ~200, a pressure deviation of nearly zero is obtained at a case pressure of 19 ± 0.5 mbar. Under such optimum condition a minimum uncertainty of ±1 mbar is also obtained for the pressure deviation. However, we further acquired that far from this optimum condition, compared to the common method, the apodized approach is also capable of reducing the pressure deviation by ~13.5 % at 20 ± 0.5 mbar of CO2 pressure, indicating the performance of the proposed method for precise pressure measurement of a gas sample, regardless of the optical limits.
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References
Chao, X., Jeffries, J., Hanson, R.: Absorption sensor for CO in combustion gases using 2.3 µm tunable diode lasers. Meas. Sci. Technol. 20(11), 115201 (2009)
Hanf, S., et al.: Fiber-enhanced Raman multigas spectroscopy: a versatile tool for environmental gas sensing and breath analysis. Anal. Chem. 86(11), 5278–5285 (2014)
Hosseinzadeh, S.S., Khorsandi, A.: Apodized 2f/1f wavelength modulation spectroscopy method for calibration-free trace detection of carbon monoxide in the near-infrared region: theory and experiment. Appl. Phys. B 116(3), 521–531 (2014)
Kelly, F.J.: Oxidative stress: its role in air pollution and adverse health effects. Occup. Environ. Med. 60(8), 612–616 (2003)
Klein, A., Witzel, O., Ebert, V.: Rapid, time-division multiplexed. Direct Absorpt. Wavel. Modul.-Spectrosc. Sens. 14(11), 21497–21513 (2014)
Lee, B.G., et al.: Widely tunable single-mode quantum cascade laser source for mid-infrared spectroscopy. Appl. Phys. Lett. 91(23), 231101 (2007)
Lewtas, J.: Air pollution combustion emissions: characterization of causative agents and mechanisms associated with cancer, reproductive, and cardiovascular effects. Mutat. Res./Rev. Mutat. Res. 636(1), 95–133 (2007)
Li, H., et al.: Near-infrared diode laser absorption sensor for rapid measurements of temperature and water vapor in a shock tube. Appl.Phys. B 89(2–3), 407–416 (2007)
Maulini, R., et al.: Continuous-wave operation of a broadly tunable thermoelectrically cooled external cavity quantum-cascade laser. Opt. Lett. 30(19), 2584–2586 (2005)
Meng, Z., et al.: Vasodilator effect of gaseous sulfur dioxide and regulation of its level by Ach in rat vascular tissues. Inhal. Toxicol. 21(14), 1223–1228 (2009)
Mohammadi, J.M., Khorsandi, A., Sabouri, G.S.: Polymeric fiber sensor for sensitive detection of carbon dioxide based on apodized wavelength modulation spectroscopy. Appl. Phys. B 118(2), 219–229 (2015)
Nguyen, Q., et al.: Tomographic measurements of carbon monoxide temperature and concentration in a bunsen flame using diode laser absorption. Ber. Bunsenges. Phys. Chem. 97(12), 1634–1642 (1993)
Rieker, G.B.: Wavelength-modulation spectroscopy for measurements of gas temperature and concentration in harsh environments. Stanford University, Stanford (2009)
Rieker, G.B., Jeffries, J.B., Hanson, R.K.: Calibration-free wavelength-modulation spectroscopy for measurements of gas temperature and concentration in harsh environments. Appl. Opt. 48(29), 5546–5560 (2009)
Ross, A.B., et al.: Measurement and prediction of the emission of pollutants from the combustion of coal and biomass in a fixed bed furnace. Fuel 81(5), 571–582 (2002)
Rothman, L.: HITRAN on the Web. Harvard-Smithsonian Center for Astrophysics (CFA), Cambridge (2014)
Senior, C.L., et al.: Gas-phase transformations of mercury in coal-fired power plants. Fuel Process. Technol. 63(2), 197–213 (2000)
Sun, K.: Utilization of multiple harmonics of wavelength modulation absorption spectroscopy for practical gas sensing. Stanford University, Stanford (2013)
Sun, K., et al.: TDL absorption sensors for gas temperature and concentrations in a high-pressure entrained-flow coal gasifier. Proc. Combust. Inst. 34(2), 3593–3601 (2013a)
Sun, K., et al.: Analysis of calibration-free wavelength-scanned wavelength modulation spectroscopy for practical gas sensing using tunable diode lasers. Meas. Sci. Technol. 24(12), 125203 (2013b)
Sun, K., et al.: Wavelength modulation diode laser absorption spectroscopy for high-pressure gas sensing. Appl. Phys. B 110(4), 497–508 (2013c)
Tittel, F.K., et al.: Recent advances in trace gas detection using quantum and interband cascade lasers. Rev. Laser Eng. 34(4), 275–282 (2006)
Vijayaraghavan, R., et al.: A bioreporter bioluminescent integrated circuit for very low-level chemical sensing in both gas and liquid environments. Sens. Actuators B Chem. 123(2), 922–928 (2007)
Waclawek, J., et al.: Quartz-enhanced photoacoustic spectroscopy-based sensor system for sulfur dioxide detection using a CW DFB-QCL. Appl. Phys. B 117(1), 113–120 (2014)
Wagner, S., et al.: TDLAS-based in situ measurement of absolute acetylene concentrations in laminar 2D diffusion flames. Proc. Combust. Inst. 32(1), 839–846 (2009)
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Mohammadi, M.J., Khorsandi, A. & Ghavami, S.S. Experimental characterization of apodized wavelength modulation spectroscopy for accurate quantitative measurement. Opt Quant Electron 48, 235 (2016). https://doi.org/10.1007/s11082-016-0519-9
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DOI: https://doi.org/10.1007/s11082-016-0519-9