Abstract
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.
Original language | English (US) |
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Title of host publication | Proceedings of the Second International Conference on Microchannels and Minichannels (ICMM2004) |
Publisher | American Society of Mechanical Engineers |
Pages | 925-930 |
Number of pages | 6 |
ISBN (Print) | 0791841642, 9780791841648 |
DOIs | |
State | Published - 2004 |
Externally published | Yes |
Event | Proceedings of the Second International Conference on Microchannels and Minichannels (ICMM2004) - Rochester, NY, United States Duration: Jun 17 2004 → Jun 19 2004 |
Publication series
Name | Proceedings of the Second International Conference on Microchannels and Minichannels (ICMM2004) |
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Other
Other | Proceedings of the Second International Conference on Microchannels and Minichannels (ICMM2004) |
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Country/Territory | United States |
City | Rochester, NY |
Period | 6/17/04 → 6/19/04 |
ASJC Scopus subject areas
- General Engineering