THREE COMPONENT FLOW IMAGING BY A 2D3C LASER DOPPLER FIELD SENSOR

Lars Buettner, Christian Bayer, Katsuaki Shirai, Andreas Voigt, Juergen Czarske

Abstract

We report about a novel laser Doppler field sensor, which is capable of measuring the three-component (3C) velocity field in fluid flows in a twodimensional area (2D) without mechanical scanning and without using a camera. The sensor is based on laser Doppler velocimetry but employs four superposed fan-like interference fringe systems. A spatial resolution in the sub-micrometer range can be achieved enabling highly spatially resolved flow studies. Possible applications are investigations in micro-fluidics or precision flux measurements.

Keywords

laser Doppler velocimetry, laser Doppler velocity profile sensor, flow imaging, micro-fluidics, flux measurement

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PWC-2006-TC9-007u.pdf

DOI

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IMEKO TC

TC9 - Flow Measurement

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