J. Phys. III France
Volume 2, Numéro 4, April 1992
Page(s) 613 - 627
DOI: 10.1051/jp3:1992144
J. Phys. III France 2 (1992) 613-627

New developments in the laser-2-focus technique for non-intrusive velocity measurements in gasturbine components

Richard Schodl and Wolfgang Förster

Inst. für Antriebstechnik Postfach 90 60 58, 5000 Köln 90, Germany

(Received 13 May 1991, accepted 23 September 1991)

Further improvement of aircraft engines with respect to fuel consumption and emission reduction requires costly and difficult investigations which are impossible without modern measuring techniques. The Institute of Propulsion Technology is primarily concerned with investigations on turbomachinery components (e.g. compressors, combustors, turbines), where very often extremely difficult conditions prevail (high flow velocities, complex geometries, rotating flow channels). For this reason non-intrusive measuring techniques play an important role. The Laser-2-Focus technique for non-intrusive velocity measurements developed in the institute has won high regard worldwide. Developments in optics and electronics have resulted in this technique having a considerably greater area of application.

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