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Single Optical Port Access Holographic Particle Image Velocimetry
Cha, Dong-Jin,Woodruff, Steven D. 한밭대학교 생산기반기술연구소 2001 생산기반기술연구소 논문집 Vol.1 No.1
An optical system, which requires only a single optical window mounted on a test volume, is proposed for holographic particle image velocimetry (HPIV). The optical system is a derivative of the double-exposure, double-reference-beam, off-axis HPIV system, but the innovative idea behind the system is to use back scattered light from the particles as the object wave. A 45˚ beam splitter inserted in front of the window serves to admit the illumination beam and extract the back scattered light. This concept can be of great engineering interest because optical access is often limited to one window in practical devices. The preliminary results of the technique appear quite promising, with current studies aimed at defining the optical resolution capabilities.