RT info:eu-repo/semantics/conferenceObject T1 Low-cost, self-referenced all-fibre polarimetric current sensor for the monitoring of current in the railway catenary A1 Filograno, M. L. A1 Corredera, Pedro A1 Monteagudo Lerma, Laura A1 Esteban Martinez, Óscar A1 González Herráez, Miguel K1 Optical fibre K1 Current sensor K1 Polarimetric sensor K1 Faraday effect K1 Ciencias tecnológicas K1 Electrónica K1 Technology K1 Electronics AB 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 railwaynetwork. Its optical configuration is simplified through the use of few devices with extremely simplified alignment. Thisallows high sensitivity for low current values and a resolution below the ampere level. The sensing head is packed in acompact box withstanding temperature and position variations without affecting the sensitivity of the set-up. Theelectronics incorporates self-referencing that makes it robust to small misalignments and power variations in the opticalsource. Field tests will be reported in the conference PB Society of Photo-Optical Instrumentation Engineers (SPIE) SN 978-0-81948-083-5 SN 0277-786X YR 2010 FD 2010-09-08 LK http://hdl.handle.net/10017/26487 UL http://hdl.handle.net/10017/26487 LA eng NO (EWOFS'10), Fourth European Workshop on Optical Fibre Sensors, 2010, Porto, Portugal. NO Comunidad de Madrid DS MINDS@UW RD 26-abr-2024