Out-of-plane displacement measurement using laser parallel fringes generated in camera with diffraction grating

Wei Jiang; Takuya Hara; Motoharu Fujigaki

doi:10.1117/12.2616262

27 October 2021 Out-of-plane displacement measurement using laser parallel fringes generated in camera with diffraction grating

Wei Jiang, Takuya Hara, Motoharu Fujigaki

Author Affiliations +

Proceedings Volume 11927, Optical Technology and Measurement for Industrial Applications Conference 2021; 119270F (2021) https://doi.org/10.1117/12.2616262
Event: SPIE Technologies and Applications of Structured Light, 2021, Online, Japan

Abstract

In this study, a diffraction grating was used for generating laser parallel fringes in a camera. Phase analysis method using those laser parallel fringes were used to measure out-of-plane displacement. A green laser of line projection function, a diffraction grating and an industrial camera were used as an experimental device. Object images with laser parallel fringes projection before and after displacement were taken by the camera. Laser parallel fringes can be generated in a camera and displacement was successfully measured by phase analysis of laser parallel fringes.

Citation Download Citation

Wei Jiang, Takuya Hara, and Motoharu Fujigaki "Out-of-plane displacement measurement using laser parallel fringes generated in camera with diffraction grating", Proc. SPIE 11927, Optical Technology and Measurement for Industrial Applications Conference 2021, 119270F (27 October 2021); https://doi.org/10.1117/12.2616262

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