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Filograno M.L.,CSIC - Institute of Optics | Corredera P.,CSIC - Institute of Optics | Rodriguez-Plaza M.,Innovation and Technology Direction | Andres-Alguacil A.,Innovation and Technology Direction | Gonzalez-Herraez M.,University of Alcala
IEEE Sensors Journal | Year: 2013

Wheel flats are a major source of problems in railway systems since they cause strong wear both in the infrastructure and in the train vehicles. In this paper, we present field tests concerning the application of Fiber Bragg Grating (FBG) sensors for the detection of out-of-roundness in high-speed train wheels. Wheel flats are shown to cause high-energy impacts on the rails that can be monitored using FBGs located in the rails. The results point out a great potential of this technology for the development of reliable wheel flat detection systems. © 2013 IEEE.


Filograno M.L.,CSIC - Institute of Optics | Corredera P.,CSIC - Institute of Optics | Gonzalez-Herraez M.,University of Alcala | Rodriguez-Plaza M.,Innovation and Technology Direction | Andres-Alguacil A.,Innovation and Technology Direction
Proceedings of SPIE - The International Society for Optical Engineering | Year: 2011

Wheel "flats" are a major source of problems in railway systems since they cause strong wear both in the infrastructure and in the train vehicles. In this work we present field tests concerning the application of Fiber Bragg Grating (FBG) sensors for the detection of out-of-roundness in high-speed train wheels. Wheel flats are shown to cause high-energy impacts on the rails which can be monitored using FBGs located in the rails. The results point out a great potential of this technology for the development of wheel flat detection systems. © 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).


Filograno M.L.,CSIC - Institute of Optics | Corredera Guillen P.,CSIC - Institute of Optics | Rodriguez-Barrios A.,University of Alcala | Martin-Lopez S.,CSIC - Institute of Optics | And 3 more authors.
IEEE Sensors Journal | Year: 2012

In this work, we present field tests concerning the application of fiber Bragg grating (FBG) sensors for the monitoring of railway traffic. The test campaigns are performed on the Spanish high-speed line Madrid-Barcelona, with different types of trains (S-102 TALGO-BOMBARDIER, S-103 SIEMENS-VELARO, and S-120 CAF). We located the FBG sensors in the rail track at 70 km from Madrid in the country side, where the trains primarily are tested during commercial operation with maximum speeds between 250-300 km/h. The FBG sensor interrogation system used allows the simultaneous monitoring of four FBG sensors at 8000 samples/s. The different position of the FBG sensors in relation with the rail can be used for different purposes such as train identification, axle counting, speed and acceleration detection, wheel imperfections monitoring, and dynamic load calculation. © 2006 IEEE.

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