Optimal Absorption Lines Selection for Gas Temperature Measurement by Using Two-Color Laser Absorption Spectroscopy

Guo, Yudong; Xu, Lijun; Qiu, Shuang; Tang, Xiaoyang; Hou, Guangyu; Cao, Zhang

doi:10.1109/tim.2022.3207792

IEEE Trans. Instrum. Meas.

2022

DOI: 10.1109/tim.2022.3207792

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Optimal Absorption Lines Selection for Gas Temperature Measurement by Using Two-Color Laser Absorption Spectroscopy

Yudong Guo

Lijun Xu

Shuang Qiu

et al.

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Cited by 7 publications

References 38 publications

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A fast closed-form approximate iterative fitting algorithm based on laser absorption spectrum

Chen,

Tang,

Zhang

et al. 2024

AIP Advances

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This paper presents a novel approach—an efficient closed-form approximation iterative fitting algorithm based on laser absorption spectra. Through this closed-form approximation iterative fitting, key parameters such as peak value, spectral line width, and normalized signal area serve as indicators for iteration completion, improving the speed without compromising accuracy. Furthermore, it employs the spectral signal of n cycles as a window for further processing, minimizing external interference. The results show that the proposed method averages 9.75 iterations, while the Levenberg–Marquardt fitting method averages 60.17 iterations. The average iteration time for the proposed method is 588.83 ms, a substantial 81.7% reduction compared to the 3210.5 ms required by the Levenberg–Marquardt fitting. These results decisively demonstrate the efficacy of the proposed method in reducing iteration time and enhancing measurement precision.

show abstract

A fast closed-form approximate iterative fitting algorithm based on laser absorption spectrum

Chen,

Tang,

Zhang

et al. 2024

AIP Advances

View full text Add to dashboard Cite

show abstract

Radial Basis Function Coupled SART Method for Dynamic LAS Tomography

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Wen

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IEEE Trans. Instrum. Meas.

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Noise Immune Absorption Profile Extraction for the TDLAS Thermometry Sensor by Using an FMCW Interferometer

Zhou

Cao

Hou

et al. 2023

IEEE Trans. Instrum. Meas.

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Optimal Absorption Lines Selection for Gas Temperature Measurement by Using Two-Color Laser Absorption Spectroscopy

Cited by 7 publications

References 38 publications

A fast closed-form approximate iterative fitting algorithm based on laser absorption spectrum

A fast closed-form approximate iterative fitting algorithm based on laser absorption spectrum

Radial Basis Function Coupled SART Method for Dynamic LAS Tomography

Noise Immune Absorption Profile Extraction for the TDLAS Thermometry Sensor by Using an FMCW Interferometer

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