摘要
This Letter demonstrates a novel lateral shear interferometer system for simultaneous measurement of three-dimensional （3D） shape and thickness of transparent objects. Multi-frequency fringe patterns can be created by tilting mirrors at different inclination angles. With a single camera, the multi-frequency fringes are recorded in one image. The phase-shift of the fringes can be generated synchronously only by moving a plane-parallel plate along an in-plane parallel direction. According to the feature of transparent materials, the thickness and 3D shape can be reconstructed simultaneously based on the relationship between the in-plane displacement and their characteristics. The experiment was conducted on a thin transparent film subjected to a shearing force, which verifies the feasibility of the proposed system.
This Letter demonstrates a novel lateral shear interferometer system for simultaneous measurement of three-dimensional （3D） shape and thickness of transparent objects. Multi-frequency fringe patterns can be created by tilting mirrors at different inclination angles. With a single camera, the multi-frequency fringes are recorded in one image. The phase-shift of the fringes can be generated synchronously only by moving a plane-parallel plate along an in-plane parallel direction. According to the feature of transparent materials, the thickness and 3D shape can be reconstructed simultaneously based on the relationship between the in-plane displacement and their characteristics. The experiment was conducted on a thin transparent film subjected to a shearing force, which verifies the feasibility of the proposed system.
作者
代祥俊
原天宇
蒋汉阳
邵新星
戴美玲
云海
杨福俊
何小元
Xiangjun Dai 1,2, Tianyu Yuan 1, Hanyang Jiang 2, Xinxing Shao2, Meiling Dai 2, Hai Yun 1, Fujun Yang 2, Xiaoyuan He2(1School of Transportation and Vehicle Engineering, Shandong University of Technology, Zibo 255049, China ; 2Department of Engineering Mechanics, Southeast University, Nanjing 210096, Chin)
基金
supported by the National Natural Science Foundation of China(Nos.11672167,11602056,11472081,and 11532005)
