Phase-conjugate holographic system for high-resolution particle-image velocimetry

Donald H. Barnhart, Ronald J. Adrian, George C. Papen

Research output: Contribution to journalArticlepeer-review

209 Scopus citations

Abstract

A novel holographic particle-image velocimeter system has been developed for the study of threedimensional (3-D) fluid velocity fields. The recording system produces 3-D particle images with a resolution, a signal-to-noise ratio, an accuracy, and derived velocity fields that are comparable to high-quality two-dimensional photographic particle-image velocimetry (PIV). The high image resolution is accomplished through the use of low f-number optics, a fringe-stabilized processing chemistry, and a phase conjugate play-back geometry that compensates for aberrations in the imaging system. In addition, the system employs a reference multiplexed, off-axis geometry for the determination of velocity directions with the cross-correlation technique, and a stereo camera geometry for the determination of the three velocity components. The combination of the imaging and reconstruction subsystems makes the analysis of volumetric PIV domains feasible.

Original languageEnglish (US)
Pages (from-to)7159-7170
Number of pages12
JournalApplied Optics
Volume33
Issue number30
DOIs
StatePublished - Oct 20 1994
Externally publishedYes

Keywords

  • Holography
  • Particle-image velocimetry
  • Velocimetry

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Phase-conjugate holographic system for high-resolution particle-image velocimetry'. Together they form a unique fingerprint.

Cite this