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On the transition of PIV into the digital age: Recounting 20 years of digital PIV

Willert, Christian (2009) On the transition of PIV into the digital age: Recounting 20 years of digital PIV. Symposium 25 Years of PIV in Aerodynamics, 23.-25. Sep. 2009, Göttingen.

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Offizielle URL: http://25-years-piv.dlr.de/wiki/

Kurzfassung

Early 1989 the first image sequences of single exposed particle images were acquired for a low speed water flow and for the first time demonstrated the double-frame, single-exposure PIV recording and processing concept, that was to become the most common implementation of PIV up until today. The presentation provides a historical perspective of the development of digital PIV in the presence of the then already well established photographic PIV methods. Initially the implementation of the two techniques seemed to be almost contradictory, but a steady improvement of the theoretical background during the 1990's clarified that the two techniques are merely different implementations of the same measurement principle. Digital processing of photographic PIV recordings became possible with the emergence of slide scanners which ultimately replaced the optical interrogation methods. Soon thereafter new camera technology based on interline-transfer CCD sensors allowed the capture of two separate images on the microsecond scale and for the first time provided reliable digital PIV measurements of high speed flows in aerodynamics. A continual growth in sensor resolution nowadays provides a spatial resolution that rivals that of high-resolution 35 mm photographic film.

Dokumentart:Konferenzbeitrag (Vortrag)
Titel:On the transition of PIV into the digital age: Recounting 20 years of digital PIV
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Willert, Christianchris.willert@dlr.de
Datum:23 September 2009
Referierte Publikation:Nein
In ISI Web of Science:Nein
Name der Reihe:Book of Abstracts
Status:veröffentlicht
Stichwörter:particle image velocimetry, history of PIV, digital image processing, flow measurement, imaging methods, flow visualization, PIV, DPIV
Veranstaltungstitel:Symposium 25 Years of PIV in Aerodynamics
Veranstaltungsort:Göttingen
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:23.-25. Sep. 2009
Veranstalter :DLR-Göttingen
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Antriebe
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L ER - Antriebsforschung
DLR - Teilgebiet (Projekt, Vorhaben):L - Virtuelles Triebwerk und Validierungsmethoden
Standort: Köln-Porz
Institute & Einrichtungen:Institut für Antriebstechnik
Institut für Antriebstechnik > Triebwerksmesstechnik
Hinterlegt von: Dr.phil. Christian Willert
Hinterlegt am:15 Mär 2010 15:31
Letzte Änderung:12 Dez 2013 20:55

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