Transient full-field vibration measurement using spectroscopical stereo photogrammetry

Contrasted with other vibration measurement methods, a novel spectroscopical photogrammetric approach is proposed. Two colored light filters and a CCD color camera are used to achieve the function of two traditional cameras. Then a new calibration method is presented. It focuses on the vibrating obj...

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Bibliographic Details
Published in:Optics express 2010-12, Vol.18 (26), p.26866-26871
Main Authors: Yue, Kaiduan, Li, Zhongke, Zhang, Ming, Chen, Shan
Format: Article
Language:English
Subjects:
Equipment Design
Equipment Failure Analysis
Image Interpretation, Computer-Assisted - instrumentation
Optical Devices
Photogrammetry - instrumentation
Spectrum Analysis - instrumentation
Vibration
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Summary:Contrasted with other vibration measurement methods, a novel spectroscopical photogrammetric approach is proposed. Two colored light filters and a CCD color camera are used to achieve the function of two traditional cameras. Then a new calibration method is presented. It focuses on the vibrating object rather than the camera and has the advantage of more accuracy than traditional camera calibration. The test results have shown an accuracy of 0.02 mm.
ISSN:1094-4087
1094-4087
DOI:10.1364/oe.18.026866