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Proceedings Paper

Real time holographic autocorrelator for the analysis of pulsed laser velocimetry images based on a bi12si020
Author(s): C. S. Moraitis; M. L. Riethmuller
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Paper Abstract

An optical real-time holographic autocorrelator for the processing of multiple exposure images in particle image displacement velocimetry is presented as a powerful alternative to conventional processing devices. This device is based on a Bi12SiO20 spatial light modulator and can result in processing rates as high as 100 frames per second. The limitations inherent to its operation are theoretically derived and some limits are given on the digital image processing algorithms used to analyze an autocorrelation pattern for deriving velocity information.

Paper Details

Date Published: 1 November 1990
PDF: 9 pages
Proc. SPIE 1404, ICALEO '89: Optical Methods in Flow and Particle Diagnostics, (1 November 1990); doi: 10.1117/12.35015
Show Author Affiliations
C. S. Moraitis, von Karman Institute for Fluid Dynamics (Belgium)
M. L. Riethmuller, von Karman Institute for Fluid Dynamics (Belgium)


Published in SPIE Proceedings Vol. 1404:
ICALEO '89: Optical Methods in Flow and Particle Diagnostics

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