Oct 29, 2025
The installation of the fibre optic sensing cable took place in the years 2018 and 2019 in the tunnel “Langer Berg” in Austria. Together with one other tunnel and an open construction part,
Jul 09, 2026
For this sensor scheme the transfer relation from fiber strain to joint deformation is derived and verified by in-lab experiments. The sensor system proves to be able to detect sub-millimeter joint
Jun 19, 2026
In this study, temperature detection in an XLPE insulated 154 kV power cable is performed using a distributed sensing method where the optical fiber itself behaves as a sensor.
Jul 07, 2026
Temperature sensing fiber optic cable can detect fires in many areas such as a transport tunnel.
Oct 02, 2025
Fiber optic sensor cables are the key enabler for real-time monitoring of temperature, strain, and acoustic signals across diverse and challenging
Mar 15, 2026
It is a passive fibre optic cable that acts as a continuous heat sensor, detecting hot spots and temperature changes without electrical currents, making it safe for
May 10, 2026
Structural integrity assessment is essential in modern tunneling to ensure safe construction works. State-of-the-art monitoring approaches like displacement readings of geodetic
Jul 20, 2025
In practice, temperature sensing optical cables are laid in the direction and circumference of the tunnel. The temperature field distribution along the tunnel and in the whole
Jun 13, 2026
The Yokogawa DTSX1 Fiber Optic Linear Heat Detection (LHD) system is a cutting-edge fire detection solution that uses distributed fibre optic
Jan 31, 2026
These four issues are comprehensively discussed, and practical suggestions are provided for the implementation of DFOS in tunnel infrastructure monitoring.
Aug 23, 2025
The designed DFOS system, consisting of more than 35 km sensing cable overall, provides distributed strain and temperature information along numerous tunnel cross-sections,
Dec 03, 2025
Such ongoing tunnel deterioration necessitates long-term field monitoring and assessment of the continuous deformation behaviour of the tunnel lining. Recently, distributed fibre optic sensing
Sep 03, 2025
High-resolution temperature sensing with Raman-OFDR using fiber-optical communication cables shows great potential as it allows the surveillance of several kilometers of
Oct 03, 2025
High-resolution temperature sensing with Raman optical frequency domain reflectometry (OFDR) using optical communication fiber cables shows
Sep 12, 2025
As an emerging alternative technology, distributed fibre optic sensing (DFOS) offers continuous strain and temperature measurements along the entire length of an optical fibre that can
Apr 15, 2026
Distributed Temperature Sensing (DTS) systems provide temperature information for accurate thermal monitoring, fire detection, and condition assessment by
Feb 05, 2026
To overcome the shortcomings of the existing water leakage monitoring methods for traffic and public utility tunnels, such as the high probability of missed detection and significant difficulty in automatic
Apr 30, 2026
Distributed fiber optic sensors (DFOSs) possess the capability to measure strain and temperature variations over long distances, demonstrating
Jan 17, 2026
This work presents a multi-parameter optical fiber monitoring solution applied to an underground power distribution network. The monitoring
Dec 12, 2025
Distributed optical fiber sensors characterized by spatially resolved measurements along a single continuous strand of optical fiber have undergone
Nov 17, 2025
A large metropolitan subway network implemented a Distributed Temperature Sensing (DTS) system along a 5-kilometer twin-tube tunnel. The
Jul 08, 2026
Therefore, it is of utmost importance to protect UUTs from disasters. Power cable accidents in UUT internal facilities mostly occur at the joints of power cables. This paper proposes a
Mar 01, 2026
Distributed fiber optic sensors (DFOSs) possess the capability to measure strain and temperature variations over long distances, demonstrating outstanding potential for monitoring underground
Apr 09, 2026
Optromix provides industry sensing solutions for Structural Health Monitoring (SHM) for different types of facilities. Optromix Company also offers a
Nov 04, 2025
It applies to resettable linear heat detectors consisting of a sensor element with fibre optic cable and designed for fire detection and fire alarm systems in building construction and civil
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