Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 2011.10a
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- Pages.107-108
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- 2011
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- 1598-2548(pISSN)
Vibration Measurement of a Structure Using Non-metric Cameras
비측정용 카메라를 이용한 구조물 진동 측정
- Published : 2011.10.27
Abstract
A methodology to measure 3-dimensional vibrational displacement of a structure by digital photogrammetry is proposed in this paper. Stereo digital images of a vibrating structure were obtained by two non-metric cameras. Then by applying the collinearity condition to the images, the 3-d displacement time history data of a point or many points can be calculated by the present methodology. Experimental work was performed to measure the displacement time history for a cantilever beam excited by a piezoelectric patch, in which the in-depth displacement data obtained by the proposed method well matched the laser sensor data.