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Proceedings Paper

POF vibration sensor based on speckle pattern changes
Author(s): L. Rodriguez-Cobo; M. Lomer; C. Galindez; J. M. Lopez-Higuera
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Paper Abstract

A method of sensing vibration using detection of changes in the spatial distribution of energy on the speckle pattern in the output multimode optical fiber is presented and demonstrated. The implementation of sensor consists of a small length of fiber which is isolated and sensitive to ambient vibration. The projection of the speckle pattern is directly recorded by a CCD camera at the outlet end of the fiber and processed changes in the intensity distribution. The sensor is simple, inexpensive and can be implemented to measure vibrations in engine, machines or buildings.

Paper Details

Date Published: 17 October 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84212Y (17 October 2012); doi: 10.1117/12.970625
Show Author Affiliations
L. Rodriguez-Cobo, Univ. of Cantabria (Spain)
M. Lomer, Univ. of Cantabria (Spain)
C. Galindez, Univ. of Cantabria (Spain)
J. M. Lopez-Higuera, Univ. of Cantabria (Spain)

Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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