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Proceedings Paper

Comparison of optical and electrical measurements of the pantograph-catenary contact force
Author(s): Marco Bocciolone; Giuseppe Bucca; Andrea Collina; Lorenzo Comolli
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Paper Abstract

In railway engineering the monitoring of contact force between pantograph and catenary gives information about the interaction between the two systems and it is useful to check the status of the overhead line. Indeed the failure of the catenary is one of the main causes of out of order problems. This study was conducted in a test campaign on an underground train instrumented with sensors able to monitor the line status. One of the more important measured quantities is the pantograph contact force, and two measurement systems were implemented: one optical and another electrical. The optical one was based on FBG sensors applied on the pantograph collector strip; the electrical one was based on two load cells positioned at the sides of the collector strip. The in-line measurements show that the optical solution is very promising, providing very reliable results that can be successfully used in the monitoring application, allowing the determination of the critical point in the line. The thermal compensation of any FBG sensors is a known problem and here is no exception: a thermal compensator was used to get also mean value measurements and the results are discussed.

Paper Details

Date Published: 9 September 2010
PDF: 4 pages
Proc. SPIE 7653, Fourth European Workshop on Optical Fibre Sensors, 765346 (9 September 2010); doi: 10.1117/12.866357
Show Author Affiliations
Marco Bocciolone, Politecnico di Milano (Italy)
Giuseppe Bucca, Politecnico di Milano (Italy)
Andrea Collina, Politecnico di Milano (Italy)
Lorenzo Comolli, Politecnico di Milano (Italy)

Published in SPIE Proceedings Vol. 7653:
Fourth European Workshop on Optical Fibre Sensors
José Luís Santos; Brian Culshaw; José Miguel López-Higuera; William N. MacPherson, Editor(s)

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