10 February 2017 Synchronous high speed multi-point velocity profile measurement by heterodyne interferometry
Author Affiliations +
Proceedings Volume 10250, International Conference on Optical and Photonics Engineering (icOPEN 2016); 102500N (2017) https://doi.org/10.1117/12.2267051
Event: Fourth International Conference on Optical and Photonics Engineering, 2016, Chengdu, China
Abstract
This paper presents a synchronous multipoint velocity profile measurement system, which acquires the vibration velocities as well as images of vibrating objects by combining optical heterodyne interferometry and a high-speed CMOS-DVR camera. The high-speed CMOS-DVR camera records a sequence of images of the vibrating object. Then, by extracting and processing multiple pixels at the same time, a digital demodulation technique is implemented to simultaneously acquire the vibrating velocity of the target from the recorded sequences of images. This method is validated with an experiment. A piezoelectric ceramic plate with standard vibration characteristics is used as the vibrating target, which is driven by a standard sinusoidal signal.
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Xueqin Hou, Xueqin Hou, Wen Xiao, Wen Xiao, Zonghui Chen, Zonghui Chen, Xiaodong Qin, Xiaodong Qin, Feng Pan, Feng Pan, } "Synchronous high speed multi-point velocity profile measurement by heterodyne interferometry", Proc. SPIE 10250, International Conference on Optical and Photonics Engineering (icOPEN 2016), 102500N (10 February 2017); doi: 10.1117/12.2267051; https://doi.org/10.1117/12.2267051
PROCEEDINGS
6 PAGES


SHARE
Back to Top