Particle image velocimetry technique for analysis of retractibility in woods of Pinus elliottii

The aim of this work was to verify the ability use Particle Image Velocimetry technique for measurements dimensional variations resulting from wood retractability Pinus elliottii wood, initially saturated and with surface marked multiple dots ink randomly distributed, used in apply technique. specimens were dried images captured during process. obtained processed by algorithm deformations that occurred calculated. For comparison, a conventional method (pachymeter) measure dimensions specimen drying. variation on 2,28 % radial direction 0,20 longitudinal fibers. With standardized method, these values 2,18 0,21 longitudinal. reduction average area 3,85 3,77 methodology. It concluded able accurately displacements specimens, statistically similar those reached through measurement demonstrating its reliability.