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Proceedings Paper

Low-cost, non-contact displacement sensor based on plastic fiber bundle
Author(s): D. Tosi; A. Neri; G. Perrone; A. Vallan
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Paper Abstract

The article presents the state-of-the-art realization of a low-cost, non-contact displacement sensor based on plastic optical fibers. The sensor head makes use of 7 fibers, arranged in a bundle configuration, to detect small displacements on a moving target; the sensing systems can compensate variations to target reflectivity. Two advanced features have been implemented: an optimization of the fiber bundle enables to improve the accuracy up to 2.7 times, and a Monte Carlo simulation provides a detailed description of the system and enables surface mapping. Experimental result show an accuracy of 7.5 μm on a range of 2.5 mm with reflectivity compensation, and of 2.4 μm on a range of 5 mm without compensation.

Paper Details

Date Published: 17 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77534G (17 May 2011); doi: 10.1117/12.884987
Show Author Affiliations
D. Tosi, Politecnico di Torino (Italy)
A. Neri, Politecnico di Torino (Italy)
G. Perrone, Politecnico di Torino (Italy)
A. Vallan, Politecnico di Torino (Italy)


Published in SPIE Proceedings Vol. 7753:
21st International Conference on Optical Fiber Sensors
Jacques Albert; Wojtek J. Bock, Editor(s)

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