Research on dynamic structure light 3D measurement technology of target surface shape under light gas gun loading

摘要

In this paper, the three-dimensional measurement technology of structured light is combined with high-speedphotography to measure and reconstruct the surface deformation of aluminum alloy target under the condition of lightgas gun loading. The test designed a structured light projection system based on the Kohler illumination structure, andadopted a self-developed high-speed photoelectric camera to receive the deformed fringe image. A 100ns magnitudetime-resolved three-dimensional surface measurement of the deformation of the target during the process of the light gasgun pushing the projectile into the target plate is realized. By comparing the results of 3D surface reconstruction withnumerical simulation results, the reliability of the proposed method for 3D measurement under high speed impactconditions is verified.