Time resolved profile measurements for ultra-fast vibrating objects

Wei-Hung Su; Cho-Yo Kuo

doi:10.1117/12.738701

17 September 2007 Time resolved profile measurements for ultra-fast vibrating objects

Wei-Hung Su, Cho-Yo Kuo

Proceedings Volume 6698, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications; 66980W (2007) https://doi.org/10.1117/12.738701
Event: Optical Engineering + Applications, 2007, San Diego, California, United States

Abstract

A novel technique using projected fringe profilometry with pulsed illuminations for finding the absolute shape of an object, which is vibrating with high frequency, is proposed. The proposed method can accurately describe the observed 3D shape at a sequence of time. Even though the tested object vibrates up to 10K-Hz, the proposed method can accurately describe the observed 3D shape at a specific time. Depth accuracy better than one part in ten thousandths of the field of view can be achieved even with excessive image noises. Furthermore, using the proposed method, the vibrating frequency and local displacement at each pixel can be accurately identified.

Citation Download Citation

Wei-Hung Su and Cho-Yo Kuo "Time resolved profile measurements for ultra-fast vibrating objects", Proc. SPIE 6698, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications, 66980W (17 September 2007); https://doi.org/10.1117/12.738701

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