Low-cost, non-contact displacement sensor based on plastic fiber bundle

D. Tosi; A. Neri; G. Perrone; A. Vallan

doi:10.1117/12.884987

17 May 2011 Low-cost, non-contact displacement sensor based on plastic fiber bundle

D. Tosi, A. Neri, G. Perrone, A. Vallan

Proceedings Volume 7753, 21st International Conference on Optical Fiber Sensors; 77534G (2011) https://doi.org/10.1117/12.884987
Event: 21st International Conference on Optical Fibre Sensors (OFS21), 2011, Ottawa, Canada

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.

Citation Download Citation

D. Tosi, A. Neri, G. Perrone, and A. Vallan "Low-cost, non-contact displacement sensor based on plastic fiber bundle", Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77534G (17 May 2011); https://doi.org/10.1117/12.884987

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