Zhou, Wu ; Tropea, Cameron ; Chen, Benting ; Zhang, Yukun ; Luo, Xu ; Cai, Xiaoshu (2021)
Spray drop measurements using depth from defocus.
In: Measurement Science and Technology, 2020, 31 (7)
doi: 10.26083/tuprints-00019333
Artikel, Zweitveröffentlichung, Verlagsversion
Kurzbeschreibung (Abstract)
Sprays are typically characterised by providing local drop size and velocity distributions and number density. The present work examines the possibility of obtaining such information using backlight photography, whereby two cameras are employed and the size and position of each imaged drop is obtained using a depth from defocus approach. A simple algorithm for estimating size and position from the two camera images is introduced and the sensitivity of this algorithm to various system parameters is investigated with simulations using synthetic images, measurements from a calibration facility, and measurements conducted in a sparse spray. Comparison measurements using the analysis of focused images are provided.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2021 |
| Autor(en): | Zhou, Wu ; Tropea, Cameron ; Chen, Benting ; Zhang, Yukun ; Luo, Xu ; Cai, Xiaoshu |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Spray drop measurements using depth from defocus |
| Sprache: | Englisch |
| Publikationsjahr: | 2021 |
| Publikationsdatum der Erstveröffentlichung: | 2020 |
| Verlag: | IOP Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Measurement Science and Technology |
| Jahrgang/Volume einer Zeitschrift: | 31 |
| (Heft-)Nummer: | 7 |
| Kollation: | 10 Seiten |
| DOI: | 10.26083/tuprints-00019333 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/19333 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung aus gefördertem Golden Open Access |
| Kurzbeschreibung (Abstract): | Sprays are typically characterised by providing local drop size and velocity distributions and number density. The present work examines the possibility of obtaining such information using backlight photography, whereby two cameras are employed and the size and position of each imaged drop is obtained using a depth from defocus approach. A simple algorithm for estimating size and position from the two camera images is introduced and the sensitivity of this algorithm to various system parameters is investigated with simulations using synthetic images, measurements from a calibration facility, and measurements conducted in a sparse spray. Comparison measurements using the analysis of focused images are provided. |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-193333 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 600 Technik, Medizin, angewandte Wissenschaften > 600 Technik |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet Strömungslehre und Aerodynamik (SLA) |
| Hinterlegungsdatum: | 24 Aug 2021 07:13 |
| Letzte Änderung: | 30 Aug 2021 06:46 |
| PPN: | |
| Zugehörige Links: | |
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| Suche nach Titel in: | TUfind oder in Google |
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