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Willert, Christian und Stasicki, Boleslaw und Klinner, Joachim und Moessner, S. (2010) Pulsed operation of high-power light emitting diodes for imaging flow velocimetry. Measurement Science and Technology, Vol. 2 (7), Seiten 1-12. Institute of Physics (IOP) Publishing. doi: 10.1088/0957-0233/21/7/075402. ISSN 0957-0233.
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Offizielle URL: http://stacks.iop.org/MST/21/075402
Kurzfassung
High-powered light emitting diodes (LED) are investigated for possible uses as light sources in flow diagnostics, in particular, as an alternative to laser-based illumination in particle imaging flow velocimetry in side-scatter imaging arrangements. Recent developments in solid state illumination resulted in mass-produced LEDs that provide average radiant power in excess of 10 W. By operating these LEDs with short duration, pulsed currents that are considerably beyond their continuous current damage threshold, light pulses can be generated that are sufficient to illuminate and image micron-sized particles in flow velocimetry. Time-resolved PIV measurements in water at a framing rate of 2 kHz are presented. The feasibility of LED-based PIV measurements in air is also demonstrated.
| elib-URL des Eintrags: | https://elib.dlr.de/64324/ | ||||||||||||||||||||
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| Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||
| Titel: | Pulsed operation of high-power light emitting diodes for imaging flow velocimetry | ||||||||||||||||||||
| Autoren: |
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| Datum: | 2010 | ||||||||||||||||||||
| Erschienen in: | Measurement Science and Technology | ||||||||||||||||||||
| Referierte Publikation: | Ja | ||||||||||||||||||||
| Open Access: | Ja | ||||||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||||||
| In SCOPUS: | Ja | ||||||||||||||||||||
| In ISI Web of Science: | Ja | ||||||||||||||||||||
| Band: | Vol. 2 | ||||||||||||||||||||
| DOI: | 10.1088/0957-0233/21/7/075402 | ||||||||||||||||||||
| Seitenbereich: | Seiten 1-12 | ||||||||||||||||||||
| Verlag: | Institute of Physics (IOP) Publishing | ||||||||||||||||||||
| ISSN: | 0957-0233 | ||||||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||||||
| Stichwörter: | particle image velocimetry, PIV, light emitting diode, LED, pulsed light source, time-resolved PIV, flow diagnostics, flow visualization | ||||||||||||||||||||
| HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||
| HGF - Programm: | Luftfahrt | ||||||||||||||||||||
| HGF - Programmthema: | Antriebe (alt) | ||||||||||||||||||||
| DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||||||
| DLR - Forschungsgebiet: | L ER - Antriebsforschung | ||||||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | L - Virtuelles Triebwerk und Validierungsmethoden (alt) | ||||||||||||||||||||
| Standort: | Köln-Porz , Göttingen | ||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Experimentelle Verfahren Institut für Antriebstechnik > Triebwerksmesstechnik | ||||||||||||||||||||
| Hinterlegt von: | Micknaus, Ilka | ||||||||||||||||||||
| Hinterlegt am: | 14 Jun 2010 11:39 | ||||||||||||||||||||
| Letzte Änderung: | 06 Sep 2019 15:28 |
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