PIV System Global Sizing Velocimeter (GSV)
The TSI Global Sizing Velocimeter (GSV) system measures droplet size and velocity simultaneously in sprays and other multiphase flows. The measurement plane is illuminated with a light sheet from a double-pulsed Nd:YAG laser, and a single TSI PowerView™ Plus camera. This single camera, equipped with a standard 105mm camera lens and unique GSV aperture, captures frame-straddled images of the droplets. An interferometric technique measures size with highly accurate results. Velocity is extracted from the frame-straddled image pair using a unique and powerful tracking algorithm.
This technique is simultaneously more accurate and simpler to use than complex, expensive, and potentially error-prone systems employing multiple cameras.