PIV measurements of a microchannel flow

  title={PIV measurements of a microchannel flow},
  author={Carl D Meinhart and Steven Wereley and Juan G Santiago},
A particle image velocimetry (PIV) system has been developed to measure velocity fields with order 1-lm spatial resolution. The technique uses 200 nm diameter flow-tracing particles, a pulsed Nd: YAG laser, an inverted epi-fluorescent microscope, and a cooled interline-transfer CCD camera to record high-resolution particle-image fields. The spatial resolution of the PIV technique is limited primarily by the diffraction-limited resolution of the recording optics. The accuracy of the PIV system… CONTINUE READING
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