Velocity measurements in microchannels with a laser scanning microscope and particle linear image velocimetry

S. H. Chao, M. R. Holl, J. H. Koschwanez, R. H. Carlson, Ling-Sheng Jang, D. R. Meldrum

研究成果: Conference contribution

摘要

A novel velocity measurement method for microscale flow field characterization is reported, particle linear image velocimetry (PLIV). The method records a series of one-dimensional images that represent the trace of particles in the flow across a one-dimensional imager. Linear imaging results in a faster frame rate than planar imaging, allowing observation of larger microscope magnification or measurement of faster flow rates in real-time than comparable techniques. In contrast to particle image velocimetry (PIV), PLIV does not require high-speed cameras or shutters. Furthermore, PLIV is adaptable to multiple linear imager formats and, as one example, can use laser scanning confocal microscopes (LSCM) that acquire images slowly but with high spatial resolutions and optical sectioning ability. Higher resolution can be obtained for flows where in-plane velocity gradient in the direction of the optical path (z-direction) is important. This paper presents the PLIV algorithm, and demonstrates its utility by measuring Poiseuille flow with 1-μm resolution in a microfluidic environment.

原文English
主出版物標題Proceedings of the Second International Conference on Microchannels and Minichannels (ICMM2004)
編輯S.G. Kandlikar, G.P. Celata, S. Nishio, P. Stephan, B. Thonon
頁面925-930
頁數6
出版狀態Published - 2004 九月 29
事件Proceedings of the Second International Conference on Microchannels and Minichannels (ICMM2004) - Rochester, NY, United States
持續時間: 2004 六月 172004 六月 19

出版系列

名字Proceedings of the Second International Conference on Microchannels and Minichannels (ICMM2004)

Other

OtherProceedings of the Second International Conference on Microchannels and Minichannels (ICMM2004)
國家/地區United States
城市Rochester, NY
期間04-06-1704-06-19

All Science Journal Classification (ASJC) codes

  • 工程 (全部)

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