Journal of Sensors and Sensor Systems
Journal of Sensors and Sensor Systems
JSSS
Articles | Volume 7, issue 1
Articles | Volume 7, issue 1
https://doi.org/10.5194/jsss-7-85-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/jsss-7-85-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 7, issue 1
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, Wilhelm Furian, Wieland Hill, and Andreas Pflitsch

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Latest update: 09 May 2026
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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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