9 September 2010 Low-cost self-referenced all-fibre polarimetric current sensor for the monitoring of current in the railway catenary
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Proceedings Volume 7653, Fourth European Workshop on Optical Fibre Sensors; 76533L (2010) https://doi.org/10.1117/12.866433
Event: (EWOFS'10) Fourth European Workshop on Optical Fibre Sensors, 2010, Porto, Portugal
Abstract
In this paper a low-cost all-fiber current sensor is described that fulfills the requirements of robustness, sensitivity, accuracy and cost required for the monitoring of catenary current in changeover sections of the high-speed railway network. Its optical configuration is simplified through the use of few devices with extremely simplified alignment. This allows high sensitivity for low current values and a resolution below the ampere level. The sensing head is packed in a compact box withstanding temperature and position variations without affecting the sensitivity of the set-up. The electronics incorporates self-referencing that makes it robust to small misalignments and power variations in the optical source. Field tests will be reported in the conference.
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Massimo L. Filograno, Pedro Corredera, Laura Monteagudo Lerma, Óscar Esteban, Miguel González-Herráez, "Low-cost self-referenced all-fibre polarimetric current sensor for the monitoring of current in the railway catenary", Proc. SPIE 7653, Fourth European Workshop on Optical Fibre Sensors, 76533L (9 September 2010); doi: 10.1117/12.866433; https://doi.org/10.1117/12.866433
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