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Civil-Comp Conferences
ISSN 2753-3239
CCC: 1
PROCEEDINGS OF THE FIFTH INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE
Edited by: J. Pombo
Paper 31.5

Optical dynamic weighting of trains

I. Stachiv1,2, P. Stachiv1 and C.-Y. Kuo1

1Drážní revize s.r.o., Ostrava-Vítkovice, Czech Republic
2Institute of Physics, Czech Academy of Sciences, Prague, Czech Republic

Full Bibliographic Reference for this paper
I. Stachiv, P. Stachiv, C.-Y. Kuo, "Optical dynamic weighting of trains", in J. Pombo, (Editor), "Proceedings of the Fifth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 1, Paper 31.5, 2022, doi:10.4203/ccc.1.31.5
Keywords: dynamic weighting, fiber optics, static weighting, bend loss of fiber.

Abstract
The dynamic weighting of railways carriages is of great importance for both the railways infrastructure managers and rail transport operations. It is particularly the high cost, low carriage speed and the necessity of using the specially designed tracks, usually in the form of a bridge, that restrict the use of the standard weighting systems to only the specific locations of tracks mainly located at the large train stations. In this study we propose a novel dynamic weighting of railways carriages utilizing bend loss of the fiber. Optical fiber which is bound to the railroad track, is deformed by the weight of the passing train. Then, different rail deformation and, consequently, changes in the light intensity passing through the optical fiber can be associated with the weight of the carriages. This system opens a doorway for a novel dynamic weighting of railways carriers at relatively low cost.

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