Real-Time Structural Health Monitoring of Reinforced Concrete Under Seismic Loading Using Dynamic OFDR [PDF]
SensorsThis paper presents a compact dynamic optical frequency domain reflectometry (D-OFDR) platform enabling millimeter-scale, distributed strain sensing for real-time structural health monitoring (SHM) of reinforced concrete subjected to seismic loading. The
Jooyoung Lee +3 more
doaj +2 more sources
Sensors, 2019 Optical fiber distributed sensing that is based on optical frequency domain reflectometer (OFDR) is a promising technology for achieving a highest spatial resolution downwards to several millimeters.
Kunpeng Feng, Hong Dang, Xun Sun
exaly +3 more sources
Real-Time GPU-Accelerated OFDR With an Integrated Auxiliary Interferometer
IEEE AccessA GPU-accelerated optical frequency domain reflectometry (OFDR) system with an improved integrated auxiliary interferometer is proposed. Unlike conventional approaches that require separate auxiliary interferometers and multiple detection channels, the ...
Salah Harb, Linqing Luo, Gang Huang
doaj +2 more sources
Simultaneous Temperature and Relative Humidity Measurement Using Machine Learning in Rayleigh-Based Optical Frequency Domain Reflectometry [PDF]
SensorsThis paper presents, for the first time to the best of our knowledge, simultaneous temperature and relative humidity (RH) measurement using a machine learning (ML) model in Rayleigh-based Optical Frequency Domain Reflectometry (OFDR).
Mateusz Mądry +3 more
doaj +2 more sources
Distributed Temperature Sensing through Network Analysis Frequency-Domain Reflectometry [PDF]
SensorsIn this paper, we propose and demonstrate a network analysis optical frequency domain reflectometer (NA-OFDR) for distributed temperature measurements at high spatial (down to ≈3 cm) and temperature resolution. The system makes use of a frequency-stepped,
Rizwan Zahoor +3 more
doaj +2 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 +6 more
europepmc +2 more sources
Implementation of Polarization-Sensitive OFDR With a Digital Coherent Transceiver
IEEE Photonics JournalWe have demonstrated a polarization-sensitive OFDR which uses a commercially available digital coherent optical transceiver to generate a continuous-phase linear frequency chirp by carrier-suppressed single-sideband modulation.
Fatima Al-Shaikhli +3 more
doaj +2 more sources
A Comprehensive Study of Optical Frequency Domain Reflectometry
IEEE Access, 2021 Optical frequency domain reflectometry (OFDR) is a kind of distributed optical fiber sensors (DOFS) which has attracted an increasing amount of research attention.
Changshuo Liang +5 more
doaj +1 more source
Journal of Electronic Science and Technology, 2021 A nonlinearity-compensation-free optical frequency domain reflectometry (OFDR) scheme is proposed and experimentally demonstrated based on the electrically-controlled optical frequency sweep.
Fan Yang +4 more
doaj +1 more source
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, 2023 Sabrina Abedin +2 more
exaly +2 more sources