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arXiv · 2111.12567

An accurate algorithm for calibration-free wavelength modulation spectroscopy based on even-order harmonics

Yihong Wang·Bin Zhou·Bubin Wang·Rong Zhao
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Abstract

This paper proposes an accurate algorithm to implement calibration-free wavelength modulation spectroscopy based on even-order harmonics. The proposed algorithm, analytically deduced from a much more accurate Voigt function model, enabling not only speedy measurement down to milliseconds, but also a general suitability for various degrees of line-shape broadening. The proposed method is validated by condition-controlled experiment, indicating calculation of gas temperature with the relative error less than 2.4% in the experiments.

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Yihong Wang, Bin Zhou, Bubin Wang, Rong Zhao. 2021-11-21. An accurate algorithm for calibration-free wavelength modulation spectroscopy based on even-order harmonics. https://arxiv.org/abs/2111.12567

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