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Rausch, Anne und Fischer, André und Kings, Nancy und Bake, Friedrich und Röhle, Ingo (2012) Optical measurement of acoustic pressure amplitudes—at the sensitivity limits of Rayleigh scattering. Optics Letters, Vol 37 (No. 13), Seiten 2685-2687. Optical Society of America. doi: 10.1364/ol.37.002685.
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Offizielle URL: http://www.opticsinfobase.org/ol/upcomingissue.cfm
Kurzfassung
Rayleigh scattering is a measurement technique applicable for the determination of density distributions in various technical or natural flows. The current sensitivity limits of the Rayleigh scattering technique were investigated experimentally. It is shown that it is possible to measure density oscillations caused by acoustic pressure oscillations noninvasively and directly. Acoustical standing waves in a rectangular duct were investigated using Rayleigh scattering and compared to microphone measurements. The comparison showed a sensitivity of the Rayleigh scattering technique of 75 Pa (7 · 10^(−4) kg∕m3) and a precision of 14 Pa (1 · 10^(−4) kg∕m3). Therefore, it was also shown that Rayleigh scattering is applicable for acoustic measurements.
| elib-URL des Eintrags: | https://elib.dlr.de/77027/ | ||||||||||||||||||||||||
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| Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||||||
| Titel: | Optical measurement of acoustic pressure amplitudes—at the sensitivity limits of Rayleigh scattering | ||||||||||||||||||||||||
| Autoren: |
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| Datum: | 1 Juli 2012 | ||||||||||||||||||||||||
| Erschienen in: | Optics Letters | ||||||||||||||||||||||||
| Referierte Publikation: | Ja | ||||||||||||||||||||||||
| Open Access: | Nein | ||||||||||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||||||||||
| In SCOPUS: | Ja | ||||||||||||||||||||||||
| In ISI Web of Science: | Ja | ||||||||||||||||||||||||
| Band: | Vol 37 | ||||||||||||||||||||||||
| DOI: | 10.1364/ol.37.002685 | ||||||||||||||||||||||||
| Seitenbereich: | Seiten 2685-2687 | ||||||||||||||||||||||||
| Verlag: | Optical Society of America | ||||||||||||||||||||||||
| Name der Reihe: | Optics Letters | ||||||||||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||||||||||
| Stichwörter: | sensitivity limits of Rayleigh scattering, density oscillations, acoustic pressure oscillation, microphone measurements, | ||||||||||||||||||||||||
| HGF - Forschungsbereich: | Energie, Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||
| HGF - Programm: | Rationelle Energieumwandlung und Nutzung (alt), Luftfahrt | ||||||||||||||||||||||||
| HGF - Programmthema: | Kraftwerkstechnik (alt), Antriebe (alt) | ||||||||||||||||||||||||
| DLR - Schwerpunkt: | Energie, Luftfahrt | ||||||||||||||||||||||||
| DLR - Forschungsgebiet: | E VG - Verbrennungs- und Gasturbinentechnik, L ER - Antriebsforschung | ||||||||||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | E - Gasturbine (alt), L - Brennkammertechnologien (alt) | ||||||||||||||||||||||||
| Standort: | Köln-Porz | ||||||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Antriebstechnik > Turbine Institut für Antriebstechnik > Triebwerksakustik | ||||||||||||||||||||||||
| Hinterlegt von: | Giess, Dr.-Ing. Peter-Anton | ||||||||||||||||||||||||
| Hinterlegt am: | 22 Aug 2012 11:19 | ||||||||||||||||||||||||
| Letzte Änderung: | 20 Nov 2023 15:17 |
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