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- ItemFibre optic sensing system for monitoring of current collectors and overhead contact lines of railways(Göttingen : Copernicus Publ., 2017) Schröder, Kerstin; Rothhardt, Manfred; Ecke, Wolfgang; Richter, Uwe; Sonntag, André; Bartelt, HartmutFibre optic sensors are excellent tools to use for monitoring high-voltage current collectors. Because of their small cross section and electrical neutrality, they are easily integrated into the current collector strip and are well specialized for detection of high-speed load events. The conventional contact force measurement with four force sensors below the collector strips can also be simplified by using fibre optic force and acceleration sensors.