Design and analysis of a low-cost compensated POF displacement sensor for industrial applications

Daniele Tosi; Massimo Olivero; Guido Perrone; Alberto Vallan

doi:10.1117/12.2019255

13 May 2013 Design and analysis of a low-cost compensated POF displacement sensor for industrial applications

Daniele Tosi, Massimo Olivero, Guido Perrone, Alberto Vallan

Proceedings Volume 8788, Optical Measurement Systems for Industrial Inspection VIII; 87883E (2013) https://doi.org/10.1117/12.2019255
Event: SPIE Optical Metrology 2013, 2013, Munich, Germany

Abstract

We present a non-contact low-cost displacement sensor based on plastic optical fiber (POF), designed for industrial applications. The proposed system is based on bifurcated fiber bundle (BFB) approach. The bundle is composed by a transmission fiber, used both to illuminate the target and collect backreflected power, and an additional receiving fiber that allows implementing target reflectivity and input power compensation. A Monte Carlo ray-tracing technique has been developed in order to evaluate system performance and tolerances to geometrical misalignments and target surface alteration. Experimental results show an accuracy of 0.04 mm on displacement readout, on the 0-1.2 mm range, assessing reflectivity compensation.

Citation Download Citation

Daniele Tosi, Massimo Olivero, Guido Perrone, and Alberto Vallan "Design and analysis of a low-cost compensated POF displacement sensor for industrial applications", Proc. SPIE 8788, Optical Measurement Systems for Industrial Inspection VIII, 87883E (13 May 2013); https://doi.org/10.1117/12.2019255

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