Abstract
The design and validation of a tunable diode laser (TDL) sensor for temperature and H2O in high-pressure and -temperature gases are presented. High-fidelity measurements are enabled through the use of: (1) strong H2O fundamental-band absorption near 2.5 μm, (2) calibration-free first-harmonic-normalized wavelength-modulation spectroscopy with second-harmonic detection (WMS-2f/1f), (3) an experimentally derived and validated spectroscopic database, and (4) a new approach to selecting the optimal wavelength and modulation depth of each laser. This sensor uses two TDLs near 2,474 and 2,482 nm that were fiber coupled in free space and frequency multiplexed to enable measurements along a single line-of-sight. The lasers were modulated at 35 and 45.5 kHz, respectively, to achieve a sensor bandwidth of 4.5 kHz. This sensor was validated in a shock tube at temperatures and pressures ranging from 1,000 to 2,700 K and 8 to 50 bar. There the sensor resolved transients and recovered the known steady-state temperature and H2O mole fraction with a precision of 3.2 and 2.6 % RMS, respectively.
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R.K. Hanson, Applications of quantitative laser sensors to kinetics, propulsion and practical energy systems. Proc. Combust. Inst. 33, 1–40 (2011)
S.T. Sanders, J.A. Baldwin, T.P. Jenkins, D.S. Baer, R.K. Hanson, Diode-laser sensor for monitoring multiple combustion parameters in pulse detonation engines. Proc. Combust. Inst. 28, 587–594 (2000)
L.A. Kranendonk, J.W. Walewski, T. Kim, S.T. Sanders, Wavelength-agile sensor applied for HCCI engine measurements. Proc. Combust. Inst. 30, 1619–1627 (2005)
G.B. Rieker, H. Li, X. Liu, J.T.C. Liu, J.B. Jeffries, R.K. Hanson, M.G. Allen, S.D. Wehe, P.A. Mulhall, H.S. Kindle, A. Kakuho, K.R. Sholes, T. Matsuura, S. Takatani, Rapid measurements of temperature and H2O concentration in IC engines with a spark plug-mounted diode laser sensor. Proc. Combust. Inst. 31, 3041–3049 (2007)
G.B. Rieker, H. Li, X. Liu, J.B. Jeffries, R.K. Hanson, M.G. Allen, S.D. Wehe, P.A. Mulhall, H.S. Kindle, A diode laser sensor for rapid, sensitive measurements of gas temperature and water vapour concentration at high temperatures and pressures. Meas. Sci. Technol. 18, 1195–1204 (2007)
K. Sun, X. Chao, R. Sur, J. B. Jeffries, and R. K. Hanson, Wavelength modulation diode laser absorption spectroscopy for high-pressure gas sensing. Appl. Phys. B. 110, 497–508 (2012)
J.T.C. Liu, J.B. Jeffries, R.K. Hanson, Large-modulation-depth 2f spectroscopy with diode lasers for rapid temperature and species measurements in gases with blended and broadened spectra. Appl. Opt. 43, 6500–6509 (2004)
V. Nagali, J.T. Herbon, D.C. Horning, D.F. Davidson, R.K. Hanson, Shock-tube study of high-pressure H2O spectroscopy. Appl. Opt. 38, 6942–6950 (1999)
A. W. Caswell, S. Roy, X. An, S. T. Sanders, F. R. Schauer, and J. R. Gord, Measurements of multiple gas parameters in a pulsed-detonation combustor using time- mode-locked lasers. Appl. Opt. 52, 2893–2904 (2013)
J. Wang, S.T. Sanders, J.B. Jeffries, R.K. Hanson, Oxygen measurements at high pressures with vertical cavity surface-emitting lasers. Appl. Phys. B 72, 865–872 (2001)
G.B. Rieker, X. Liu, H. Li, J.B. Jeffries, R.K. Hanson, Measurements of near-IR water vapor absorption at high pressure and temperature. Appl. Phys. B 87, 169–178 (2006)
B.H. Armstrong, Spectrum line profiles: the Voigt function. J. Quant. Spectrosc. Radiat. Transf. 7, 61–88 (1967)
F. Herbert, Spectrum line profiles: a generalized Voigt function including collisional narrowing. J. Quant. Spectrosc. Radiat. Transf. 14, 943–951 (1974)
P.L. Varghese, R.K. Hanson, Collisional narrowing effects on spectral line shapes measured at high resolution. Appl. Opt. 23, 2376–2385 (1984)
L. Galatry, Simultaneous effect of Doppler and foreign gas broadening on spectral lines. Phys. Rev. 122, 1218–1223 (1961)
R.H. Dicke, The effect of collisions upon the Doppler width of spectral lines. Phys. Rev. 89, 472–473 (1953)
C.S. Goldenstein, J.B. Jeffries, R.K. Hanson, Diode laser measurements of linestrength and temperature-dependent lineshape parameters of H2O-, CO2-, and N2-perturbed H2O transitions near 2474 and 2482 nm. J. Quant. Spectrosc. Radiat. Transf. 130, 100–111 (2013)
J. Reid, D. Labrie, Second-harmonic detection with tunable diode lasers—comparison of experiment and theory. Appl. Phys. B 26, 203–210 (1981)
D.T. Cassidy, L.J. Bonnell, Trace gas detection with short-external-cavity InGaAsP diode laser transmitter modules operating at 1.58 μm. Appl. Opt. 27, 2688–2693 (1988)
D.T. Cassidy, J. Reid, Atmospheric pressure monitoring of trace gases using tunable diode lasers. Appl. Opt. 21, 1185–1190 (1982)
T. Fernholz, H. Teichert, V. Ebert, Digital, phase-sensitive detection for in situ diode-laser spectroscopy under rapidly changing transmission conditions. Appl. Phys. B Lasers Opt. 75, 229–236 (2002)
G.B. Rieker, J.B. Jeffries, R.K. Hanson, Calibration-free wavelength-modulation spectroscopy for measurements of gas temperature and concentration in harsh environments. Appl. Opt. 48, 5546–5560 (2009)
P. Kluczynski, Å.M. Lindberg, O. Axner, Wavelength modulation diode laser absorption signals from Doppler broadened absorption profiles. J. Quant. Spectrosc. Radiat. Transf. 83, 345–360 (2004)
P. Kluczynski, O. Axner, Theoretical description based on Fourier analysis of wavelength-modulation spectrometry in terms of analytical and background signals. Appl. Opt. 38, 5803–5815 (1999)
C. S. Goldenstein, C. L. Strand, I. A. Schultz, K. Sun, J. B. Jeffries, R. K. Hanson, Fitting of calibration-free scanned-wavelength-modulation spectroscopy spectra for determination of gas properties and absorption lineshapes. Appl. Opt. 53, 356–367 (2014)
L.S. Rothman, I.E. Gordon, R.J. Barber, H. Dothe, R.R. Gamache, A. Goldman, V.I. Perevalov, S.A. Tashkun, J. Tennyson, HITEMP, the high-temperature molecular spectroscopic database. J. Quant. Spectrosc. Radiat. Transf. 111, 2139–2150 (2010)
R.A. Toth, L.R. Brown, M.A.H. Smith, V. Malathy Devi, D. Chris Benner, M. Dulick, Air-broadening of H2O as a function of temperature: 696–2163 cm−1. J. Quant. Spectrosc. Radiat. Transf. 101, 339–366 (2006)
G. Wagner, M. Birk, R.R. Gamache, J.-M. Hartmann, Collisional parameters of lines: effect of temperature. J. Quant. Spectrosc. Radiat. Transf. 92, 211–230 (2005)
J.M. Hartmann, J. Taine, J. Bonamy, B. Labani, D. Robert, Collisional broadening of rotation–vibration lines for asymmetric-top molecules. II. H2O diode laser measurements in the 400–900 K range; calculations in the 300–2000 K range. J. Chem. Phys. 86, 144 (1987)
J.M. Hartmann, M.Y. Perrin, Q. Ma, R.H. Tipping, The infrared continuum of pure water vapor: calculations and high-temperature measurements. J. Quant. Spectrosc. Radiat. Transf. 49, 675–691 (1993)
C. S. Goldenstein, R. M. Spearrin, I. A. Schultz, J. B. Jeffries, and R. K. Hanson, Wavelength-modulation spectroscopy near 1.4 μm for measurements of H2O and temperature in high-pressure and -temperature gases. Meas. Sci. Technol. (2014) (in press)
R.M. Spearrin, C.S. Goldenstein, J.B. Jeffries, R.K. Hanson, Fiber-coupled 2.7 μm laser absorption sensor for CO2 in harsh combustion environments. Meas. Sci. Technol. 24, 055107 (2013)
X. Zhou, J.B. Jeffries, R.K. Hanson, Development of a fast temperature sensor for combustion gases using a single tunable diode laser. Appl. Phys. B 81, 711–722 (2005)
X. An, A. W. Caswell, J. J. Lipor, S. T. Sanders, Determining the optimum wavelength pairs to use for molecular absorption thermometry based on the continuous-spectral lower-state energy. J. Quant. Spectrosc. Radiat. Transf. 112, 2355–2362 (2011)
P.R. Bevington, D.K. Robinson, Data reduction and error analysis for the physical sciences (McGraw-Hill, New York, 1992)
X. Zhou, X. Liu, J.B. Jeffries, R.K. Hanson, Selection of NIR H2O absorption transitions for in-cylinder measurement of temperature in IC engines. Meas. Sci. Technol. 16, 2437–2445 (2005)
G. Ben-Dor, O. Igra, and T. Elperin, 2001 Handbook of Shock Waves (2001), p. Ch. 3.1 and 4.1
E.L. Petersen, R.K. Hanson, Nonideal effects behind reflected shock waves in a high-pressure shock tube. Shock Waves 10, 405–420 (2001)
L. Hildebrandt, R. Knispel, S. Stry, J.R. Sacher, F. Schael, Antireflection-coated blue GaN laser diodes in an external cavity and Doppler-free indium absorption spectroscopy. Appl. Opt. 42, 2110–2118 (2003)
A. Farooq, J.B. Jeffries, R.K. Hanson, Measurements of CO2 concentration and temperature at high pressures using 1f-normalized wavelength modulation spectroscopy with second harmonic detection near 2.7 μm. Appl. Opt. 48, 6740–6753 (2009)
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This work was sponsored by Innovative Scientific Solutions Incorporated (ISSI) with Dr. John Hoke as technical monitor and by the Air Force Office of Scientific Research (AFOSR) and the National Center for Hypersonic Combined Cycle Propulsion, grant FA 9550-09-1-0611, with technical monitors Dr. Chiping Li (AFOSR) and Dr. Richard Gaffney (NASA).
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Goldenstein, C.S., Spearrin, R.M., Jeffries, J.B. et al. Wavelength-modulation spectroscopy near 2.5 μm for H2O and temperature in high-pressure and -temperature gases. Appl. Phys. B 116, 705–716 (2014). https://doi.org/10.1007/s00340-013-5754-1
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DOI: https://doi.org/10.1007/s00340-013-5754-1