HITRAN/HITEMP Spectral Databases and Uncertainty Propagation by Means of Monte Carlo Simulation with Application to Tunable Diode Laser Absorption Diagnostics

Abstract

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Temperature Compensation Algorithm of Air Quality Monitoring Equipment Based on TDLAS

“…) n P = 2γP + 2 ∑ i γ i P i (6) among them, γ and P are the pressure broadening coefficient and pressure of the gas to be measured, n is the temperature coefficient, and γ ii and P i represent the pressure broadening coefficient and pressure of the colliding gas, respectively. In order to improve the accuracy and sensitivity of the detection, this paper adopts the wavelength modulation spectroscopy (WMS) technique [19,20].…”

“…In order to study the effects of temperature changes on TDLAS gas measurements, many scholars utilize spectral parameters from the High-Resolution Transmission Molecular Absorption Database (HITRAN) [6]. For example, the intensity of the spectral line, the absorption coefficient, and the absorption linear parameters have been studied.…”

TDLAS Monitoring of Carbon Dioxide with Temperature Compensation in Power Plant Exhausts

“…Numerous studies have been performed to investigate the influence of temperature variation on TDLAS measurement. Many of them used spectroscopic parameters such as line intensity [20] from databases like HITRAN (High Resolution Transmission) or HITEMP (High Temperature Molecular Spectroscopic). Nevertheless, these databases, which mainly derive from theoretical calculation, may have some uncertainty while applied in high-temperature measurement.…”