Heterodyne speckle interferometer for full-field velocity profile measurements of a vibrating membrane by electronic scanning

2007 ◽  
Vol 45 (6) ◽  
pp. 677-683 ◽  
Author(s):  
Mauro V. Aguanno ◽  
Fereydoun Lakestani ◽  
Maurice P. Whelan ◽  
Michael J. Connelly
Keyword(s):  
Velocity Profile ◽  
Full Field ◽  
Speckle Interferometer ◽  
Field Velocity ◽  
Vibrating Membrane

scholarly journals Full-field velocity imaging of red blood cells in capillaries with spatiotemporal demodulation autocorrelation

2016 ◽  
Vol 21 (03) ◽  
pp. 1
Author(s):  
Mingyi Wang ◽  
Yaguang Zeng ◽  
Nannan Dong ◽  
Riwei Liao ◽  
Guojian Yang
Keyword(s):  
Red Blood Cells ◽  
Blood Cells ◽  
Full Field ◽  
Velocity Imaging ◽  
Field Velocity

Full Field Velocity Measurement of Laser-Driven Flyer Using Framing-Imaging Velocity Interferometer System for Any Reflector

2013 ◽  
Vol 33 (9) ◽  
pp. 0912007
Author(s):  
刘寿先 Liu Shouxian ◽  
温伟峰 Wen Weifeng ◽  
袁树云 Yuan Shuyun ◽  
陈光华 Chen Guanghua ◽  
刘俊 Liu Jun ◽  
...  
Keyword(s):  
Velocity Measurement ◽  
Full Field ◽  
Field Velocity

Laser speckle measurements of transient Bénard convection

1978 ◽  
Vol 89 (4) ◽  
pp. 665-671 ◽  
Author(s):  
P. G. Simpkins ◽  
T. D. Dudderar
Keyword(s):  
Harmonic Component ◽  
Laser Speckle ◽  
Horizontal Distance ◽  
Short Side ◽  
Full Field ◽  
Third Harmonic ◽  
Velocity Information ◽  
Field Velocity ◽  
Oriented Parallel ◽  
Moving Liquid

Quantitative velocity measurements of unsteady convection in a Bénard cell suddenly cooled from above to a supercritical Rayleigh number are reported. The results are obtained by a novel application of laser speckle photography adapted for the study of fluid dynamics. This technique allows two-dimensional full-field velocity information to be obtained solely from a selected plane within the volume of moving liquid at any given instant in time. The convective rolls are found to be regular and oriented parallel to the short side of the cell. The number of rolls within the cell is approximately twice as great as the number reported for steady conditions. The maximum vertical velocity distribution is observed to be a sinusoidal function of the horizontal distance with a detectable third-harmonic component.

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