Resumen
Velocimetry procedure by particle image correlation with spatial resolution that is less than the size of the query window.This invention consists in the modification of the standard velocimetry by particle images (Particle Image Velocimetry or PIV). This modification is a new procedure for extracting the information regarding the movement field from the particle images. The problem that this new procedure solves is the acquisition of spatial resolutions that are less than the query window in PIV by correlation (effect that can be observed in Figure 3, series 4, - 64 pixel query windows). The new procedure can be applied to any PIV equipment by numeric correlation. Consequently, its possibility of application covers all the fields in which standard PIV is employed (such as aeronautics, naval, environment, civil engineering and mechanical, chemical industry, etc.)<IMAGE>