Periodic recording helps to eliminate spurious results. Improved digital-correlation process extracts velocity field of two-dimensional flow from laser-speckle images of seed particles distributed sparsely in flow. Method which involves digital correlation of images recorded at unequal intervals, completely automated and has potential to be fastest yet.
Digital Correlation In Laser-Speckle Velocimetry
NASA Tech Briefs ; 16 , 1
1992-01-01
Miscellaneous
No indication
English
Measuring Flow With Laser-Speckle Velocimetry
NTRS | 1988
|The Reduction of Laser Speckle Noise in Planar Doppler Velocimetry Systems
British Library Conference Proceedings | 1998
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