Nwaboh, Javis A. ; Werhahn, Olav ; Ebert, Volker (2021)
H₂O collisional broadening coefficients at 1.37 µm and their temperature dependence: a metrology approach.
In: Applied Sciences, 11 (12)
doi: 10.3390/app11125341
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
We report self- and air collisional broadening coefficients for the H₂O line at 7299.43 cm⁻¹ and corresponding temperature coefficients for a temperature range spanning 293–573 K. New laser spectroscopic setups specifically designed for this purpose have been developed and are described. The line parameters reported here are in good agreement with those values reported in the HITRAN 2020 database, but the uncertainties have been reduced by factors of about 4, 1.3 and 4.4 for the self-broadening coefficient, air broadening coefficient and the temperature exponent of air broadening, respectively. Further, we combined our measurement approach with metrological data quality objectives, addressing the traceability of the results to the international system of units (SI) and evaluated the uncertainties following the guide to the expression of uncertainty in measurement (GUM).
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2021 |
| Autor(en): | Nwaboh, Javis A. ; Werhahn, Olav ; Ebert, Volker |
| Art des Eintrags: | Bibliographie |
| Titel: | H₂O collisional broadening coefficients at 1.37 µm and their temperature dependence: a metrology approach |
| Sprache: | Englisch |
| Publikationsjahr: | 2021 |
| Ort: | Basel |
| Verlag: | MDPI |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Applied Sciences |
| Jahrgang/Volume einer Zeitschrift: | 11 |
| (Heft-)Nummer: | 12 |
| Kollation: | 12 Seiten |
| DOI: | 10.3390/app11125341 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | We report self- and air collisional broadening coefficients for the H₂O line at 7299.43 cm⁻¹ and corresponding temperature coefficients for a temperature range spanning 293–573 K. New laser spectroscopic setups specifically designed for this purpose have been developed and are described. The line parameters reported here are in good agreement with those values reported in the HITRAN 2020 database, but the uncertainties have been reduced by factors of about 4, 1.3 and 4.4 for the self-broadening coefficient, air broadening coefficient and the temperature exponent of air broadening, respectively. Further, we combined our measurement approach with metrological data quality objectives, addressing the traceability of the results to the international system of units (SI) and evaluated the uncertainties following the guide to the expression of uncertainty in measurement (GUM). |
| Freie Schlagworte: | laser spectroscopy, gas metrology, water vapor, collisional broadening, broadening temperature dependence |
| Zusätzliche Informationen: | This article belongs to the Special Issue Diode Laser Spectroscopy – Robust Sensing for Environmental and Industrial Applications |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 530 Physik 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet Reaktive Strömungen und Messtechnik (RSM) |
| Hinterlegungsdatum: | 15 Jan 2024 07:50 |
| Letzte Änderung: | 16 Jan 2024 09:48 |
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| Suche nach Titel in: | TUfind oder in Google |
Verfügbare Versionen dieses Eintrags
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H₂O Collisional Broadening Coefficients at 1.37 µm and Their Temperature Dependence: A Metrology Approach. (deposited 12 Jan 2024 15:05)
- H₂O collisional broadening coefficients at 1.37 µm and their temperature dependence: a metrology approach. (deposited 15 Jan 2024 07:50) [Gegenwärtig angezeigt]
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