| Zugriffsnummer | 39516 |
| Dokumenttyp | Konferenzartikel |
| Sprache | Englisch |
| Titel | Automated identification of the position and orientation of the LDA measuring volume with respect to flow cross section |
| Übersetzungstitel | Automatisierte Bestimmung der Position und Ausrichtung des LDA-Messvolumens zum Strömungsquerschnitt |
| Autor(in); Institution |
Heitmann, Felix; 7.5, Wärme und Vakuum, PTB-Berlin
Juling, Markus; 7.5, Wärme und Vakuum, PTB-Berlin
Steinbock, Jonas; 7.5, Wärme und Vakuum, PTB-Berlin
Kraume, Matthias; Technische Universität Berlin, Fachgebiet Verfahrenstechnik, Berlin, GERMANY
|
| Quelle/Jahr | Experimentelle Strömungsmechanik: 25. Fachtagung, 5.-7. September 2017, Karlsruhe:(2017), 32-1 - 32-8 |
| ISSN | 2194-2447 |
| ISBN | 978-3-9816764-3-3 |
| URL | |
| Verlag | Karlsruhe: Deutsche Gesellschaft für Laser-Anemometrie GALA e.V. |
| Konferenzangaben | 25. Fachtagung "Experimentelle Strömungsmechanik", Karlsruhe, 05-07 September 2017, Deutschland |
| Zusammenfassung | Positioning of the measuring volume is one of the biggest contributors to uncertainty in laser Doppler anemometry (LDA). It is even more crucial for spatially resolved LDA, where two measuring volumes have to be overlapped precisely. Therefore, a new measurement principle is presented that makes use of a glass marking on the flow confining wall. Traversing a laser beam across the glass marking causes a distinct refraction signal, which allows the localisation of the glass wall with respect to the measuring volume. With this principle, the location of the flow cross section centre is determined fully automated within 15 minutes, with a 3D combined uncertainty below 5 μm. Furthermore all three angles between measuring volume and flow cross section are measured within 4 minutes with uncertainties below 600 μrad. Using a six-axis positing system, all angles are corrected autonomously. Hence, a reproducible procedure has been developed allowing a fully automated preparation for spatially high resolved LDA measurements. |
Zitierung
Heitmann, F., Juling, M., Steinbock, J., & Kraume, M. (2017). Automated identification of the position and orientation of the LDA measuring volume with respect to flow cross section. 25. Fachtagung "Experimentelle Strömungsmechanik", Karlsruhe, 05-07 September 2017, Deutschland.