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Single-camera, three-dimensional particle tracking velocimetry

 
: Peterson, K.; Regaard, B.; Heinemann, S.; Sick, V.

:
Postprint (873Byte; PDF; )

Optics Express 20 (2012), Nr.8, S.9031-9037
ISSN: 1094-4087
Englisch
Zeitschriftenaufsatz, Elektronische Publikation
Fraunhofer ILT ()

Abstract
This paper introduces single-camera, three-dimensional particle tracking velocimetry (SC3D-PTV), an image-based, single-camera technique for measuring 3-component, volumetric velocity fields in environments with limited optical access, in particular, optically accessible internal combustion engines. The optical components used for SC3D-PTV are similar to those used for two-camera stereoscopic-PIV, but are adapted to project two simultaneous images onto a single image sensor. A novel PTV algorithm relying on the similarity of the particle images corresponding to a single, physical particle produces 3-component, volumetric velocity fields, rather than the 3-component, planar results obtained with stereoscopic PIV, and without the reconstruction of an instantaneous 3D particle field. The hardware and software used for SC3D-PTV are described, and experimental results are presented.

: http://publica.fraunhofer.de/dokumente/N-206691.html