title: Single-camera, three-dimensional particle tracking velocimetry.
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-µPIV, 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.
authors.affiliation: The University of Michigan, Department of Mechanical Engineering, 1231 Beal Avenue, Ann Arbor, MI 48109, USA. petersok@umich.edu
authors.forename: Kevin
authors.initials: K
authors.lastname: Peterson
authors.forename: Boris
authors.initials: B
authors.lastname: Regaard
authors.forename: Stefan
authors.initials: S
authors.lastname: Heinemann
authors.forename: Volker
authors.initials: V
authors.lastname: Sick