An apparatus for measuring tire ground contact figure using laser specle shearography

摘要

The present invention is a tread deformation and ground pressure in the tire ground surface using laser speckle shearing interferometry to provide a device for measuring . ; to this end the present invention is , that the laser is fixed and the tire is embossed on the thick acrylic plate after irradiation , irradiated with coherent light such as a laser , to obtain a phase map of the irradiated light on the tire surface , and configured to obtain a differential value of the surface displacement of these quantities and the object corresponding to the quantitatively , the strain distribution pool by the non-destructive testing - laser to obtain a field description the speckle shearing interference method and characterized by applying the set-up characteristics using a common optical path .