PIV application with continuous Laser system

[arunraje]

Particle Image Velocimetry (PIV) Systems
Flow investigation using the classical PIV
Particle Image Velocimetry (PIV) is a very common and useful tool to investigate the flow phenomena in models of blood vessels, heart valves or artificial organs. A 2D high-resolution PIV system has been developed, setup and successfully tested. The system contains a high-speed video camera (512 × 480 pixel at 250 fps, 512 × 240 pixel at 500 fps) for the image capture and a continuous laser light source (λ = 682 nm, 75 mW) with an adapted light sheet optics for the illumination of the flow. After recording the images are stored to the hard disk drive of a PC and can be analyzed using the cross correlation technique. The software used for the analysis is Davis by LaVision, Göttingen. The system is easy to set up since no synchronisation between the light source and the camera is necessary. The system is very useful for hydromechanics, where the velocities are small compared to aerodynamics.


http://www.charite.de/biofluidmechanik/ ... _GB_0.html