7 July 1983 Nd:YAG Holographic Interferometer For Aerodynamic Research
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Abstract
A holographic interferometer system has been installed in the NASA Ames 2- by 2-Foot Transonic Wind Tunnel. The system incorporates a modern 10 pps, Nd:YAG pulsed laser which provides reliable operation and is easy to align. The spatial filtering requirements of the unstable resonator beam are described, as well as the integration of the system into the existing schlieren system. A two-plate holographic interferometer is used to reconstruct flow field data. For static wind tunnel models, the single exposure holograms are recorded in the usual manner; however, for dynamic models such as oscillating airfoils, synchronous laser hologram recording is used.
© (1983) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
James E. Craig, James E. Craig, George Lee, George Lee, William D. Bachalo, William D. Bachalo, } "Nd:YAG Holographic Interferometer For Aerodynamic Research", Proc. SPIE 0353, Industrial and Commercial Applications of Holography, (7 July 1983); doi: 10.1117/12.933956; https://doi.org/10.1117/12.933956
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