Development of a tunable diode laser sensor for measurements of gas turbine exhaust temperature

Liu, X.; Jeffries, Jay B.; Hanson, Ronald K.; Hinckley, Kevin; Woodmansee, M. A.

doi:10.1007/s00340-005-2078-9

Cited by 100 publications

(38 citation statements)

References 21 publications

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“…An accurate 1f-normalized WMS-2f model for absorption sensing at elevated temperatures was previously developed [5,19,[26][27][28][29]. A brief review of the method is presented here to define the notation and guide the discussion.…”

Section: Theorymentioning

confidence: 99%

Simultaneous measurements of temperature and CO2 concentration employing diode laser absorption near 2.0 μm

et al. 2015

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Section: Theorymentioning

confidence: 99%

Simultaneous measurements of temperature and CO2 concentration employing diode laser absorption near 2.0 μm

et al. 2015

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“…The above two absorbance ratios can be further simplified to the ratio of line strengths R, which is a function of temperature only as expressed Equation (4) named double-line thermometry [24].…”

Section: Absorption Spectroscopy Fundamentalsmentioning

confidence: 99%

A Study of Two Dimensional Tomography Reconstruction of Temperature and Gas Concentration in a Combustion Field Using TDLAS

Sun

Zhang

et al. 2017

Applied Sciences

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Based on tunable diode laser absorption spectroscopy (TDLAS), two-dimensional (2D) distribution reconstructions of gas concentration and temperature are realized using an algebraic reconstruction technique (ART). The influence of the beam distribution and grid size on combustion field reconstruction is investigated to attain optimal reconstruction results with a limited number of beams. Under limited optical-path numbers, it shows that a better spatial resolution is attainable only when the laser beam paths are vertical and parallel to the symmetry axis of the combustion field. Furthermore, experiments with 16 beam paths using one and two flat flame combustion fields are carried out in different fuel-air equivalence ratios under room temperature. The results are in agreement with the simulation results, and the time resolution is less than 1 s.

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“…Second, the direct absorption strategy enjoys simplicity of implementation and signal interpretation [30]. The direct absorption technique does not need calibration, while the WMS-2f technique usually needs to be calibrated against several parameters, including the modulation depth, detector gain, and average incident laser intensity [14,31]. Finally, the direct absorption technique requires a lower sampling rate than the WMS2f variation; it facilitates the analysis and storage of the data.…”

Section: Measurement Techniquementioning

confidence: 99%

Simultaneous measurements of multiple flow parameters for scramjet characterization using tunable diode-laser sensors

et al. 2011

Appl. Opt.

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This paper reports the simultaneous measurements of multiple flow parameters in a scramjet facility operating at a nominal Mach number of 2.5 using a sensing system based on tunable diode-laser absorption spectroscopy (TDLAS). The TDLAS system measures velocity, temperature, and water vapor partial pressure at three different locations of the scramjet: the inlet, the combustion region near the flame stabilization cavity, and the exit of the combustor. These measurements enable the determination of the variation of the Mach number and the combustion mode in the scramjet engine, which are critical for evaluating the combustion efficiency and optimizing engine performance. The results obtained in this work clearly demonstrated the applicability of TDLAS sensors in harsh and high-speed environments. The TDLAS system, due to its unique virtues, is expected to play an important role in the development of scramjet engines.

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Development of a tunable diode laser sensor for measurements of gas turbine exhaust temperature

Cited by 100 publications

References 21 publications

Simultaneous measurements of temperature and CO2 concentration employing diode laser absorption near 2.0 μm

Simultaneous measurements of temperature and CO2 concentration employing diode laser absorption near 2.0 μm

A Study of Two Dimensional Tomography Reconstruction of Temperature and Gas Concentration in a Combustion Field Using TDLAS

Simultaneous measurements of multiple flow parameters for scramjet characterization using tunable diode-laser sensors

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