22 June 2013 Some discussion on high-speed-imaging-based optical coherent measurement
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Proceedings Volume 8769, International Conference on Optics in Precision Engineering and Nanotechnology (icOPEN2013); 876917 (2013) https://doi.org/10.1117/12.2016663
Event: International Conference on Optics in Precision Engineering and Nanotechnology (icOPEN2013), 2013, Singapore, Singapore
Abstract
Optical coherent detection is a precise and non-contact method for measurement of tiny deformation or movement of an object. In the last century, it can only be used on the static or quasi-static measurement of deformation between two statuses. Recently it has been applied on dynamic measurement with the help of high-speed camera. The advantage of this technique is that it can offer a full-field measurement. However, due to the limited capturing rate of high-speed camera, its capability in temporal domain cannot meet the requirements of many applications. In this study, several issues in high-speed-camera-based optical interferometry are discussed. For example, introduction of carrier in temporal and spatial domain, signal processing in temporal-frequency domain, and the introduction of dual-wavelength interferometry in dynamic measurement. The discussion leads to a clue to select suitable technique to fulfill whole-field dynamic measurement at different ranges.
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Y. Fu, Y. Fu, J. Yuan, J. Yuan, Y. J. Xu, Y. J. Xu, M. Guo, M. Guo, H. Liu, H. Liu, K. Yan, K. Yan, C. Yang, C. Yang, H. Miao, H. Miao, } "Some discussion on high-speed-imaging-based optical coherent measurement ", Proc. SPIE 8769, International Conference on Optics in Precision Engineering and Nanotechnology (icOPEN2013), 876917 (22 June 2013); doi: 10.1117/12.2016663; https://doi.org/10.1117/12.2016663
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