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Kansas State University

Research Foundation
Kansas State University
2005 Research Park Circle
Suite 105
Manhattan, KS 66502-5020
Tel: 785-532-5720
Fax: 785-532-3920
tech.transfer@k-state.edu

Holographic Particle Image Velocimetry Apparatus and Method

Reference Number: 99-07 & 98-21

Inventors: Hui Meng and Ye Pu

Description:

Holographic Particle Image Velocimetry (HPIV) records the instantaneous 3D information of a large quantity of tracer particles in a fluid volume on a hologram and then reconstructs the particle images optically. By finding the 3D displacements of the particles in the image volume between two exposures separated by a short time lapse, instantaneous volumetric 3D velocity field is retrieved. When applied in conjunction with cinematography, both time- and space-resolved measurements can be accomplished. Hence holograph is the path for 3D velocimetry.

Applications
  • Aircraft
  • Automobile manufacturing
  • Chemical and material processing
  • Environmental
  • Data Storage
Advantages
  • With off-axis HPIV scheme, the real, virtual images and the reference beam are no longer superposed, eliminating the major source of speckle noise inherent in in-line HPIV
  • The off-axis HPIV configuration offers superior image SNR at relatively high seeding density, alleviating the need for denoising in data processing and enabling the use of “Concise Cress Correlation” (CCC) algorithm
  • A great gain on processing speed and data compression ratio is achieved over traditional methods using CCC
  • This innovative correlation approach also makes particle pairing possible, which increases the spatial resolution by two orders of magnitudes

Patent Status

  • U.S. Patent # 6,496,262 issued December 17, 2002

Kansas State University Research Foundation seeks to have discussions with companies that are interested in licensing and/or research collaborations.

Interested parties should contact:

National Institute for Strategic Technology Acquisition and Commercialization (NISTAC)
2005 Research Park Circle Manhattan, KS 66502
Tel: 785-532-3900 Fax: 785-532-3909
E-Mail: nistac@ksu.edu