| Zugriffsnummer | 32997 |
| Dokumenttyp | Konferenzartikel |
| Sprache | Deutsch |
| Titel | Powerful Laser-Doppler Anemometer for in-flight measurements |
| Autor(in); Institution |
Grosche, Gesine; 1.31, Strömungsmeßtechnik, PTB-Braunschweig
Müller, Harald; 1.31, Strömungsmesstechnik, PTB-Braunschweig
Strunck, Volker; 1.31, Strömungsmesstechnik, PTB-Braunschweig
Dopheide, Dietrich; 1.3, Fluidmechanik, PTB-Braunschweig
|
| Quelle/Jahr | Flow diagnosis techniques : proceedings of the international workshop:(1998), 185 - 192 |
| Herausgeber(in) |
Kuznetsov, V.
|
| ISBN | 5-7320-0514-5 |
| Verlag | Saint-Petersburg: Society Znanie |
| Konferenzangaben | International Workshop on Flow Diagnosis Techniques ; FDT-98, Saint-Petersburg, 30, June - 03, July, 1998, Russia |
| Zusammenfassung | We describe a powerful Laser-Doppler Anemometer (LDA) designed for measuring flow velocities from an aircraft in flight. Heterodyne shift methods allow the use of two independent 1-Watt semiconductor lasers operating at 980 nm to form one measuring volume with a power density of up to 30×106 W/m² at a working distance of 0.3 m. The first flight experiments under hazy conditions were successful: signals with an SNR > 15 dB were detected with a rate up to 10 Hz, with on-line data processing, validation and storage. |
