The Suvis engineering company cooperates closely in the field of optical flow diagnostic techniques, particularly Phase-Doppler-techniques, with the chair of fluid mechanics of the Chemnitz University of Technology. With the Phase-Doppler-Anemometer (PDA) one is able to measure the local flow velocity (up to three velocity components) and simultaneously the particle size distribution within a spray, for example. The application of this rather complex measurement technique necessitates trained staff, which has to have good knowledge of experimental techniques as well as experience in experimental fluid mechanics. Regular training of our personnel in modern measurement techniques ensures an optimal output of our experimental measurement projects. The cooperation with the chair of fluid mechanics completes our technical and scientific area of authority.