Design of a three dimensional Doppler anemometer for T2 transonic wind tunnel

Author

Prudhomme, S. ; Seraudie, A.

Author_Institution

Centre d´´Etudes et de Recherches de Toulouse, France

fYear

1989

fDate

18-21 Sep 1989

Firstpage

197

Lastpage

205

Abstract

The design of a three-dimensional laser Doppler anemometer for the T2 wind tunnel which can measure simultaneously and without disturbance the three instantaneous components of the velocity in a complex transonic flow is described. The design is an innovative one, including fiber optics and real-time signal processing, using a digitized Fourier transform. These technologies have been tested and qualified. The complete system allows systematic optical measurements for most experiments performed in the T2

Keywords

Doppler effect; anemometers; computerised picture processing; fast Fourier transforms; laser velocimeters; transonic flow; wind tunnels; T2 transonic wind tunnel; computerised picture processing; digitized Fourier transform; fiber optics; laser velocimeter; optical measurements; real-time signal processing; three dimensional Doppler anemometer; Fiber lasers; Fluid flow measurement; Fourier transforms; Optical design; Optical fibers; Optical signal processing; Performance evaluation; Signal design; Testing; Velocity measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation in Aerospace Simulation Facilities, 1989. ICIASF '89 Record., International Congress on

Conference_Location

Gottingen

Type

conf

DOI

10.1109/ICIASF.1989.77673

Filename

77673