Martinez Schramm, Jan und Schmidt, Leni (2024) Heterodyne Dual Frequency Comb Laser Absorption Spectroscopy Measurements in Supersonic Combustion. In: 3rd International Conference on High-Speed Vehicle Science and Technology (HiSST) 2024. CEAS. 3rd International Conference on High-Speed Vehicle Science and Technology (HiSST) 2024, 2024-04-14 - 2024-04-19, Busan, Korea.
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Offizielle URL: https://www.hist2024.org/
Kurzfassung
Experimental determination of NO and H2O production during hydrogen combustion applying laser absorption spectroscopy has been performed in the High Enthalpy Shock Tunnel Göttingen of the Ger- man Aerospace Center. The combustion process forming these species within the propulsion unit of a small scale wind tunnel model was experimentally studied. A novel experimental approach to obtain absorption spectra in the infrared region within µ-seconds is reported. This technique is based on the use of quantum cascade lasers generated frequency combs and enables multi-species measurements at high acquisition rates. The generated frequency combs are within the 1740±20 cm−1 wavenumber region which features strong NO and H2O spectral lines allowing for the spectral characterization of these species. The technique and its underlying physics, the application in short duration ground testing and the needed calibration work is discussed.
elib-URL des Eintrags: | https://elib.dlr.de/210504/ | ||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||
Titel: | Heterodyne Dual Frequency Comb Laser Absorption Spectroscopy Measurements in Supersonic Combustion | ||||||||||||
Autoren: |
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Datum: | 14 April 2024 | ||||||||||||
Erschienen in: | 3rd International Conference on High-Speed Vehicle Science and Technology (HiSST) 2024 | ||||||||||||
Referierte Publikation: | Ja | ||||||||||||
Open Access: | Nein | ||||||||||||
Gold Open Access: | Nein | ||||||||||||
In SCOPUS: | Nein | ||||||||||||
In ISI Web of Science: | Nein | ||||||||||||
Verlag: | CEAS | ||||||||||||
Status: | veröffentlicht | ||||||||||||
Stichwörter: | hypersonic flow, shock tunnel experiments, laser absorption, hydrogen combustion, dual comb frequency quantum cascade laser, High Enthalpy Shock Tunnel Göttingen, HEG, EU Stratofly | ||||||||||||
Veranstaltungstitel: | 3rd International Conference on High-Speed Vehicle Science and Technology (HiSST) 2024 | ||||||||||||
Veranstaltungsort: | Busan, Korea | ||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||
Veranstaltungsbeginn: | 14 April 2024 | ||||||||||||
Veranstaltungsende: | 19 April 2024 | ||||||||||||
Veranstalter : | HiSST, CEAS | ||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||
HGF - Programm: | Raumfahrt | ||||||||||||
HGF - Programmthema: | Raumtransport | ||||||||||||
DLR - Schwerpunkt: | Raumfahrt | ||||||||||||
DLR - Forschungsgebiet: | R RP - Raumtransport | ||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | R - Wiederverwendbare Raumfahrtsysteme und Antriebstechnologie | ||||||||||||
Standort: | Göttingen | ||||||||||||
Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Raumfahrzeuge, GO | ||||||||||||
Hinterlegt von: | Martinez Schramm, DR Jan | ||||||||||||
Hinterlegt am: | 09 Jan 2025 11:06 | ||||||||||||
Letzte Änderung: | 09 Jan 2025 11:06 |
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