Holographic interferometry in high-temperature flows using the high entalphy shock tunnel in Gottingen (HEG)

Dirk Kastell; Georg Eitelberg; Sebastian Kortz; Burkhard Fleck

doi:10.1117/12.194350

15 November 1994 Holographic interferometry in high-temperature flows using the high entalphy shock tunnel in Gottingen (HEG)

Dirk Kastell, Georg Eitelberg, Sebastian Kortz, Burkhard Fleck

Author Affiliations +

Proceedings Volume 2248, Optical Measurements and Sensors for the Process Industries; (1994) https://doi.org/10.1117/12.194350
Event: Optics for Productivity in Manufacturing, 1994, Frankfurt, Germany

Abstract

For the optical flow visualization in the new high enthalpy shock tunnel of the German Aerospace Research Establishment (DLR) in Gottingen (HEG) a fully automated holographic interferometer has been installed and improved. The interferometer applies the phase shift technique, which enables computerized evaluation of the holograms, to create high quality interferograms. Because of the high resolution of the images, optical enlargement and hologram-schlieren is made possible. With the use of the simple Gladstone-Dale equation it is possible to calculate complete flow field gradients.

Citation Download Citation

Dirk Kastell, Georg Eitelberg, Sebastian Kortz, and Burkhard Fleck "Holographic interferometry in high-temperature flows using the high entalphy shock tunnel in Gottingen (HEG)", Proc. SPIE 2248, Optical Measurements and Sensors for the Process Industries, (15 November 1994); https://doi.org/10.1117/12.194350

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