4.7 Article

Improving OFDR Distributed Fiber Sensing by Fibers With Enhanced Rayleigh Backscattering and Image Processing

Related references

Note: Only part of the references are listed.
Article Engineering, Electrical & Electronic

Real-Time Optical Fiber-Based Distributed Temperature Monitoring of Insulation Oil-Immersed Commercial Distribution Power Transformer

Mudabbir Badar et al.

Summary: Timely detection of incipient faults in power transformers is crucial to prevent malfunction. Monitoring transformer insulation oil, particularly its temperature, is essential as it provides key diagnostic information. Distributed optical fiber sensors have advantages over traditional methods, as shown in this study on a 100 kVA distribution transformer. Results indicate good agreement between conventional methods and distributed fiber temperature sensors.

IEEE SENSORS JOURNAL (2021)

Article Multidisciplinary Sciences

Engineering nanoparticle features to tune Rayleigh scattering in nanoparticles-doped optical fibers

Victor Fuertes et al.

Summary: This study reports the fabrication of low-loss Ca-based nanoparticles doped silica fibers with tunable Rayleigh scattering for long-range distributed sensing. This technology opens up new possibilities for manufacturing optical fibers suitable for long-distance distributed sensing.

SCIENTIFIC REPORTS (2021)

Review Engineering, Electrical & Electronic

Enhanced Backscattering Optical Fiber Distributed Sensors: Tutorial and Review

Daniele Tosi et al.

Summary: Optical Backscatter Reflectometry (OBR) is an advanced distributed sensing technique that utilizes optical fibers to detect and localize physical parameters with spatial resolution below the millimeter. By tailoring the Rayleigh scattering properties of optical fibers and enhancing backscattering contents, it is possible to create 2 and 3-dimensional sensing networks, extending OBR to multi-dimensional and even biosensing applications. This work provides a tutorial on distributed optical fiber sensors with enhanced backscattering and discusses the design of sensing networks with these fibers, while also reviewing main applications and emerging topics.

IEEE SENSORS JOURNAL (2021)

Article Engineering, Electrical & Electronic

PIG Tracking Utilizing Fiber Optic Distributed Vibration Sensor and YOLO

Zhou Sha et al.

Summary: This paper proposed a strategy of tracking pipe PIG utilizing Fiber Optic Distributed Vibration Sensor (FODVS) and YOLO object detection algorithm. The trained model is proved to be able to accurately capture the invert-V signature in the space-time graph thus revealing the real time position of a PIG. This paper provides a concept-proof preliminary demonstration on the promising combination of FODVS and object detection scheme for pursuing better performance of events recognition.

JOURNAL OF LIGHTWAVE TECHNOLOGY (2021)

Letter Multidisciplinary Sciences

Evaluating measurement uncertainty in Brillouin distributed optical fibre sensors using image denoising

Marcelo A. Soto et al.

NATURE COMMUNICATIONS (2021)

Article Computer Science, Information Systems

Phase-Sensitive Optical Time Domain Reflectometry With Rayleigh Enhanced Optical Fiber

Nageswara Lalam et al.

Summary: This paper presents a phase-sensitive optical time domain reflectometry (8-OTDR) based on Rayleigh enhanced optical fiber to enhance the system signal-to-noise ratio. Experimental results show a 14 dB improvement in the measured SNRs of peaks at the end of the specialty sensing fiber. A wide range of vibration frequencies from 50 Hz to 15 kHz have been experimentally demonstrated, overcoming the limitations of conventional 8-OTDR systems and significantly enhancing vibration sensing performance.

IEEE ACCESS (2021)

Article Optics

Accuracy improvement in OFDR-based distributed sensing system by image processing

Shiyuan Zhao et al.

OPTICS AND LASERS IN ENGINEERING (2020)

Proceedings Paper Remote Sensing

Integrated Auxiliary Interferometer to correct non-linear tuning errors in OFDR

Mudabbir Badar et al.

OPTICAL WAVEGUIDE AND LASER SENSORS (2020)

Article Engineering, Electrical & Electronic

Bend-Loss-Free Distributed Sensor Based on Rayleigh Backscattering in Ge-Doped-Core PCF

Khurram Naeem et al.

IEEE SENSORS JOURNAL (2018)

Article Optics

Coherent Φ-OTDR based on I/Q demodulation and homodyne detection

Zinan Wang et al.

OPTICS EXPRESS (2016)