A study on three-dimensional velocimetry by quasi-particle-tracking method

Single-camera, three-dimensional particle tracking velocimetry.

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-µ...

Scanning FCS, a novel method for three-dimensional particle tracking.

We describe a novel method to track fluorescent particles in three dimensions with nanometre precision and millisecond time resolution. In this method, we use our two-photon excitation microscope. The galvomotor-driven x-y scanning mirrors allow the laser beam to move repetitively in a circular path with a radius of half the width of the point spread function of the laser. When the fluorescent ...

Particle Image Velocimetry by Feature Tracking

A High Spatial Method to Determine Three-Dimensional Velocity Gradient Tensor using Micro Particle Image Velocimetry

Micro Particle Image Velocimetry (μPIV) is a non-invasive flow field measurement technique, which is becoming the method of choice for the investigation of micro-flows. Measurements of flows which occur within the human body represent one of the most important applications of μPIV. A three-component two-dimensional scanning micro-Particle Image Velocimetry (μPIV) technique is presented in this ...

A three-dimensional strain measurement method in elastic transparent materials using tomographic particle image velocimetry

BACKGROUND The mechanical interaction between blood vessels and medical devices can induce strains in these vessels. Measuring and understanding these strains is necessary to identify the causes of vascular complications. This study develops a method to measure the three-dimensional (3D) distribution of strain using tomographic particle image velocimetry (Tomo-PIV) and compares the measurement ...