Results 1 to 10 of about 336 (99)

Structural Health Monitoring Using a New Type of Distributed Fiber Optic Smart Textiles in Combination with Optical Frequency Domain Reflectometry (OFDR): Taking a Pedestrian Bridge as Case Study. [PDF]

Sensors (Basel), 2023
Distributed fiber optic sensors (DFOS) have become a new method for continuously monitoring infrastructure status. However, the fiber’s fragility and the installation’s complexity are some of the main drawbacks of this monitoring approach. This paper aims to overcome this limitation by embedding a fiber optic sensor into a textile for a faster and ...
Abedin S, Biondi AM, Wu R, Cao L, Wang X.   +4 more
europepmc   +6 more sources

Implementation of a Length Gauge Based on Optical Frequency Domain Reflectometry (OFDR). [PDF]

Sensors (Basel)
Optical frequency domain reflectometry (OFDR) is a widely used method for measuring optical lengths to backscattering points in optical fibers and integrated optical chips. However, its application for measuring absolute distances in other media, including free space, remains insufficiently studied.
Shestakov A, Kambur D, Konstantinov Y, Belokrylov M, Claude D, Shardakov I, Turov A.   +6 more
europepmc   +5 more sources

Utilized Distributed Optical Fiber Sensor with Spiral-Serpentine Deployment Enabling High-Precision Full-Field Temperature Reconstruction and Thermal Management for Pouch Lithium-Ion Battery. [PDF]

Adv Sci (Weinh)
Real‐time and accurate monitoring of battery surface temperature is widely recognized as essential for ensuring operational safety. By synergistically combining high‐resolution sensing‐interrogation systems, optimized DOFS deployment scheme, and intelligent reconstruction algorithms, this study achieves full‐range and high‐fidelity temperature field ...
Zhu Y, Zhang X, Shang Y, Yu M, Gu X, Li J, Hou L.   +6 more
europepmc   +2 more sources

New concept of permafrost degradation monitoring based on photonics technologies: Case study from Calypsostranda (Bellsund, Svalbard)

Land Degradation &Development, Volume 34, Issue 18, Page 5744-5755, December 2023., 2023
Abstract Ground temperature measurements are crucial for a better understanding of changes in the natural environment, especially in the Arctic. Previous measurement systems provided accurate measurements; however, their most significant disadvantage was the relatively low spatial resolution, including in the vertical profile.
Piotr Zagórski, Radosław Dobrowolski, Adam Paździor, Tomasz Nasiłowski, Kamil Kultys, Kamil Misztal, Paweł Piątek, Daniel Lis, Cezary Polakowski, Mateusz Łukowski, Wojciech Berus, Paweł Mergo, Andrzej Bieganowski   +12 more
wiley   +1 more source

2D Shape Estimation of a Pneumatic‐Driven Soft Finger with a Large Bending Angle Based on Learning from Two Sensing Modalities

Advanced Intelligent Systems, Volume 5, Issue 10, October 2023., 2023
A shape estimation method that utilizes two sensing modalities of a customized fiber Bragg grating‐based sensor and a commercial air pressure sensor for a pneumatically driven soft finger with a large bending angle range based on an artificial neural network model is proposed.
Jianxiong Hao, Zhiqiang Zhang, Shuxin Wang, Chaoyang Shi   +3 more
wiley   +1 more source

An Optical Frequency Domain Reflectometer's (OFDR) Performance Improvement via Empirical Mode Decomposition (EMD) and Frequency Filtration for Smart Sensing. [PDF]

Sensors (Basel)
Belokrylov ME, Kambur DA, Konstantinov YA, Claude D, Barkov FL.   +4 more
europepmc   +2 more sources

Soil Crack Width Controls Preferential Flow Velocity Through Drag Partitioning

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Preferential flow within soil cracks influences land surface hydrological processes, yet direct quantifying preferential flow velocity (PFV) remains challenging. Here, we develop a method for high‐resolution monitoring and quantifying PFV in soil cracks using optical frequency domain reflectometry (OFDR).
Chang Sun, Chao‐Sheng Tang, Farshid Vahedifard, Ao Dong, Zhan‐Ming Yang, Bin Shi   +5 more
wiley   +1 more source

Optical Fiber Sensors for Safety and Maintenance Monitoring of Linear Infrastructure

Advanced Sensor Research, Volume 5, Issue 5, May 2026.
This review rigorously provides a thorough and detailed overview of the most recent innovations and advancements in the field of railway and pipeline infrastructure monitoring, accomplished through the implementation of cutting‐edge fiber sensing technologies, with a specific emphasis on its two principal technical branches, namely multipoint sensing ...
Shengnan Wu, Yue Cao, Xiaokun Qian, Jianling Wu, Armando Laudati, Vincenzo Romano Marrazzo, Maria Alessandra Cutolo, Giovanni Breglio, Andrea Cusano, Antonello Cutolo, Sailing He   +10 more
wiley   +1 more source

Strain Development During Cure of Partially Pre‐Cured Thermosetting Composites Measured With Distributed Fiber Optic Sensors

Polymer Composites, Volume 47, Issue 8, Page 7155-7169, 20 April 2026.
Schematic representation of the beneficial effect of ply pre‐curing on temperature overshoot, internal strain and warpage during cure of thin and thick thermosetting composites. ABSTRACT Detection of manufacturing‐induced defects in thermosetting composites is crucial to guarantee part quality, safety, and improve manufacturing efficiency.
Francesco Taddei, Giacomo Struzziero, Valentin Ott, Véronique Michaud   +3 more
wiley   +1 more source

Bearing Capacity of Tension Steel Piles in Thinly Inter‐Layered Soils: Numerical Class‐A Prediction vs. Field Measurements

International Journal for Numerical and Analytical Methods in Geomechanics, Volume 50, Issue 3, Page 1430-1450, 25 February 2026.
ABSTRACT This study investigates the bearing capacity of tension piles and pile‐soil interaction during loading. Discrepancies between predicted and measured bearing capacities in previous tests motivated the study, where analytical methods showed considerable scatter and uncertainties in design.
Diaa Alkateeb, Jürgen Grabe
wiley   +1 more source