Measurement of a microchamber flow by using a hybrid multiplexing holographic velocimetry

C. T. Yang, H. S. Chuang

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)


A hybrid multiplexing holographic velocimetry used for characterizing three-dimensional, three-component (3D-3C) flow behaviors in microscale devices was designed and tested in this paper. Derived from the concept of holographic particle image velocimetry (HPIV), a new experimental facility was realized by integrating a holographic technique with a state-of-the-art multiplexing operation based on a microPIV configuration. A photopolymer plate was adopted as an intermedium to record serial stereoscopic images in the same segment. The recorded images were retrieved by a scanning approach, and, afterwards, the distributions of particles in the fluid were analyzed. Finally, a concise cross-correlation algorithm (CCC) was used to analyze particle movement and, hence, the velocity field, which was visualized by using a chromatic technique. To verify practicability, the stereoscopic flow in a backward facing step (BFS) chamber was measured by using the new experimental setup, as well a microPIV system. The comparison indicated that the photopolymer-based velocimetry was practicable to microflow investigation; however, its accuracy needed to be improved.

Original languageEnglish
Pages (from-to)385-396
Number of pages12
JournalExperiments in Fluids
Issue number2
Publication statusPublished - 2005 Aug 1

All Science Journal Classification (ASJC) codes

  • Computational Mechanics
  • Mechanics of Materials
  • Physics and Astronomy(all)
  • Fluid Flow and Transfer Processes


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