Mid-infrared CO2 sensor with blended absorption features for non-uniform laminar premixed flames
We develop a novel mid-infrared CO2 absorption sensor exploiting spectrally blended
features to characterize thermochemical non-uniformity of laminar premixed flames. A new …
features to characterize thermochemical non-uniformity of laminar premixed flames. A new …
Cepstral analysis for baseline-insensitive absorption spectroscopy using light sources with pronounced intensity variations
This paper presents a data-processing technique that improves the accuracy and precision
of absorption-spectroscopy measurements by isolating the molecular absorbance signal …
of absorption-spectroscopy measurements by isolating the molecular absorbance signal …
Narrow-band multi-component gas analysis based on photothermal spectroscopy and partial least squares regression method
Y Zhou, M Jiang, W Dou, D Meng, C Wang… - Sensors and Actuators B …, 2023 - Elsevier
In spectroscopic multi-component gas sensing, the crosstalk in the overlapping region of gas
absorption spectra will affect the measurement accuracy. This paper reports a new multi …
absorption spectra will affect the measurement accuracy. This paper reports a new multi …
Time-resolved multi-parameter detection in a kerosene-fueled combustor using tunable diode laser absorption spectroscopy
Non-contact and real-time measurements for species concentration and temperature with
high-time resolution in practical combustion environments are desired. A laser absorption …
high-time resolution in practical combustion environments are desired. A laser absorption …
Diffuse-reflection-based single-ended laser absorption sensor for H2O temperature and concentration in kerosene-fuelled combustor
The design, optimization and demonstration of a compact, single-ended laser absorption
sensor based on a diffuse-wall-reflected signal is presented for temperature and H 2 O …
sensor based on a diffuse-wall-reflected signal is presented for temperature and H 2 O …
Simultaneous measurements of temperature, CO2 concentration and soot volume fraction in counterflow diffusion flames using a single mid-infrared laser
We report on the development of a mid-infrared laser sensor near 4172 nm for in-situ,
quantitative and simultaneous measurements of temperature, CO2 concentration and soot …
quantitative and simultaneous measurements of temperature, CO2 concentration and soot …
Gaussian process regression for direct laser absorption spectroscopy in complex combustion environments
Tunable diode laser absorption spectroscopy (TDLAS) has been proved to be a powerful
diagnostic tool in combustion research. However, current methods for post-processing a …
diagnostic tool in combustion research. However, current methods for post-processing a …
Compact mid-infrared laser sensor for temperature and CO concentration measurement using heterodyne phase-sensitive dispersion spectroscopy
Dispersion spectroscopy-based laser diagnostic techniques bear the same advantages as
absorption-based techniques, such as being in situ, non-intrusive, and quantitative. In …
absorption-based techniques, such as being in situ, non-intrusive, and quantitative. In …
Fourier and wavelet transform analysis of wavelength modulation spectroscopy signal
In the present paper, the performances of an approach based on continuous wavelet
transform to demodulate wavelength modulation spectroscopy harmonic signal (CWT-WMS) …
transform to demodulate wavelength modulation spectroscopy harmonic signal (CWT-WMS) …
AP–HTPB propellant combustion under strain conditions with laser absorption spectroscopy
M Gu, J Ouyang, S Wang, W Yuan, X Shi, K Hou… - Applied Optics, 2023 - opg.optica.org
Understanding the combustion behaviors of solid propellant with different levels of strains is
of practical interest. In this work, an experimental study of the effects of static and dynamic …
of practical interest. In this work, an experimental study of the effects of static and dynamic …