Development of a PIV system using a laser-diode
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2005
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INTERNATIONAL CONGRESS OF MECHANICAL ENGINEERING, 18th
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A low cost PIV (Particle Image Velocimetry) was developed for characterization, visualization and quantification
of a flow test section. Optical devices are common nowadays in metrology, in fluid-flow measurement and studies of
flow around structural models or industrial facilities in wind tunnels. The advantages of the optic devices are high resolution,
precision, fast response time and, most important, it is not intrusive. The PIV system developed is composed by
a quasi-continuous laser-diode with nominal power up to 100 W, monochromatic at 800 nm wave length. An orthogonal
lens set defines the width and thickness of the light screen in the test section. Image acquisition is made by a CCD camera.
Acquisition and processing image software was developed in C++ and Matlab. The flow field velocities are determined
by processing successive images using cross correlation. Analysis of fluid flow around 1 and 2 cylinders, in parallel, were
conducted. The tests were conducted in water seeded with micro-spheres with 30 μm mean diameter. The analysis were
conducted with velocities of the order of 0.15 m/s, the optical window dimensions was about 100 mm x 150 mm. The
results show that the PIV prototype is working even though further development is necessary.
Como referenciar
FRACASSO, PAULO T.; NADER, GILDER; JABARDO, PAULO J.S.; PEREIRA, MARCOS T.; CALY, JOSE P.; BRUNA, WAGNER C.; MARTINS, FLAVIUS P.R.; FERRARA, EDUARDO; MURAMATSU, MIKIYA; WETTER, NIKLAUS U. Development of a PIV system using a laser-diode. In: INTERNATIONAL CONGRESS OF MECHANICAL ENGINEERING, 18th, November 6-11, 2005, Ouro Preto, MG. Proceedings... Rio de Janeiro, RJ: Associação Brasileira de Engenharia e Ciências Mecânicas - ABCM, 2005. Disponível em: http://repositorio.ipen.br/handle/123456789/34038. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.