Articles | Volume 7, issue 1
J. Sens. Sens. Syst., 7, 85–90, 2018
https://doi.org/10.5194/jsss-7-85-2018

Special issue: Sensor/IRS2 2017

J. Sens. Sens. Syst., 7, 85–90, 2018
https://doi.org/10.5194/jsss-7-85-2018

Regular research article 20 Feb 2018

Regular research article | 20 Feb 2018

Temperature sensing in underground facilities by Raman optical frequency domain reflectometry using fiber-optic communication cables

Markus Brüne et al.

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Cited articles

Albani, J. R.: Structure and dynamics of macromolecules: Absorption and fluorescence studies, edited by: Albani, J. R., Elsevier, Amsterdam, ISBN 978-0-444-51449-3, 2004. a
Brüne, M., Pflitsch, A., Agnew, B., and Spiegel, J.: Dynamics of natural air flow inside subway tunnels, in: Proceedings from the Fifth International Symposium on Tunnel Safety and Security, edited by: Lönnermark, A. and Ingason, H., 1, 329–337, SP Technical Research Institute of Sweden, Borås and Sweden, 2012. a
Dakin, J. P., Pratt, D. J., Bibby, G. W., and Ross, J. N.: Distributed optical fibre Raman temperature sensor using a semiconductor light source and detector, Electron. Lett., 21, 569–570, https://doi.org/10.1049/el:19850402, https://doi.org/10.1049/el:19850402, 1985. a, b
Ghafoori-Shiraz, H. and Okoshi, T.: Optical frequency-domain reflectometery, Opt. Quant. Electron., 18, 265–272, https://doi.org/10.1007/BF02029871, 1986. a
Hill, W., Kübler, J., and Fromme, M.: Single-mode distributed temperature sensing using OFDR, in: (EWOFS'10) Fourth European Workshop on Optical Fibre Sensors, edited by: Santos, J. L., Culshaw, B., López-Higuera, J. M., and MacPherson, W. N., SPIE Proceedings, p. 765342, SPIE, https://doi.org/10.1117/12.866246, 2010. a, b, c
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Short summary
The climate conditions in underground transportation facilities, especially the current airflow in terms of direction and speed, are the key factor driving smoke propagation in the case of a tunnel fire. Sensing this airflow is cost-intensive. Therefore, this paper focuses on gaining the information from temperature sensing along the tunnels using already installed optical fibers normally used for communications. This technique can replace thousands of temperature sensors.
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