Improvement of Concentration Inversion Model Based on Second Harmonic Valley Spacing in Wavelength Modulation Spectroscopy

Improvement of Concentration Inversion Model Based on Second Harmonic Valley Spacing in Wavelength Modulation Spectroscopy

In tunable diode laser absorption spectroscopy (TDLAS), the wavelength modulation spectroscopy (WMS) is widely employed. However, when measuring the gas concentration with the second harmonic signal, errors will occur and the inversion accuracy will be reduced, because the change of the modulation d...

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Bibliographic Details
Main Authors: Yun Pan, Yi Li, Changxiang Yan, Jing Yuan, Yijie Ren
Format: Article
Language:English
Published: IEEE 2020-01-01
Series:IEEE Access
Subjects:
Concentration inversion model
modulation depth
TDLAS
valley spacing
WMS
Online Access:https://ieeexplore.ieee.org/document/9298757/

Internet

https://ieeexplore.ieee.org/document/9298757/

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