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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 24, Iss. 9 — May. 1, 1999
  • pp: 575–577

Digital speckle-pattern interferometry as a full-field fluid-velocimetry technique

Nieves Andrés, M. Pilar Arroyo, Heiko Hinrichs, and Manuel Quintanilla  »View Author Affiliations


Optics Letters, Vol. 24, Issue 9, pp. 575-577 (1999)
http://dx.doi.org/10.1364/OL.24.000575


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Abstract

We present a novel fluid-velocimetry technique based on speckle interferometry. The light scattered from an illuminated plane is recorded with a CCD camera at the same time as a speckled reference beam. Substraction of two nonsimultaneous frames provides information about the velocity field for an out-of-plane component. An application to a Rayleigh–Bénard convective flow is given.

© 1999 Optical Society of America

OCIS Codes
(120.6160) Instrumentation, measurement, and metrology : Speckle interferometry
(120.7250) Instrumentation, measurement, and metrology : Velocimetry
(280.2490) Remote sensing and sensors : Flow diagnostics

Citation
Nieves Andrés, M. Pilar Arroyo, Heiko Hinrichs, and Manuel Quintanilla, "Digital speckle-pattern interferometry as a full-field fluid-velocimetry technique," Opt. Lett. 24, 575-577 (1999)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-24-9-575

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