Optical fiber sensors by direct laser processing: A review

D Pallarés-Aldeiturriaga, P Roldán-Varona… - Sensors, 2020 - mdpi.com
The consolidation of laser micro/nano processing technologies has led to a continuous
increase in the complexity of optical fiber sensors. This new avenue offers novel possibilities …

Advances in distributed optical fiber sensors based on optical frequency domain reflectometry: a review

Z Ding, H Guo, K Liu, P Hua, T Zhang, S Li… - IEEE Sensors …, 2023 - ieeexplore.ieee.org
Optical frequency-domain reflectometry (OFDR) offers a unique combination of ultrahigh
spatial resolution and sensitivity, which makes OFDR one of the most rapidly developing …

Research on the vibration characteristics of pumped storage unit stator core based on fiber optic sensing

P Qi, Y Li, M Ma, Y Wu, W Lu - IEEE Transactions on Energy …, 2023 - ieeexplore.ieee.org
Stator core vibration (SCV) response of pumped storage units (PSU) can effectively reflect its
operation status and provide reference for excitation winding inter-turn short circuit (ITSC) …

Quasi-distributed 3-cm vibration and strain monitoring using OFDR and in-line interferometers

A Sanchez-Gonzalez, D Leandro, M Shi… - Journal of Lightwave …, 2024 - ieeexplore.ieee.org
This study presents a new quasi-distributed vibration sensing approach with a 3-cm spatial
resolution, capable of performing multiparameter measurements. In-line interferometers are …

Quasi-distributed vibration sensing system for transformers using a phase-sensitive OFDR

WQ Qin, GM Ma, M Zhang, Y Wang… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
A quasi-distributed vibration sensing system based on a phase-sensitive optical frequency-
domain reflectometer is proposed for monitoring the vibration of power transformer oil tanks …

A novel shape restoration algorithm for Ultra-fast morphology perception system based on multiplexing FBG array

J Wang, J Li, Z Wang, L Jin, J Huang, T Zhu - Measurement, 2023 - Elsevier
Here, we demonstrate an FBG-array-based ultra-fast shape perception system where a
novel shape restoration algorithm is proposed and a time-stretch technology is used to fast …

A flexible multiplexing method of FBG sensors based on OFDR

N Yang, J Zhang, L Yu, P Zheng, B Zhao, H Sun, Q Liu - Optik, 2022 - Elsevier
A flexible multiplexing method of fiber Bragg grating (FBG) sensors based on optical
frequency domain reflectometer (OFDR) is proposed in this paper to reduce the influence of …

Long-range distributed vibration sensing using phase-sensitive forward optical transmission

GY Chen, K Liu, X Rao, Y Wang, M Khalid, J He… - Optics Letters, 2023 - opg.optica.org
Long-range vibration sensing is an important tool for real-time structural health monitoring. A
new, to the best of our knowledge, design of a distributed fiber-optic vibration sensor is …

Quasi-distributed vibration sensing based on weak reflectors and STFT demodulation

D Leandro, M Zhu, M López-Amo… - Journal of Lightwave …, 2020 - opg.optica.org
In this work, a new system is proposed for quasi-distributed vibration sensing based on the
Doppler effect. The setup employs an optical frequency domain reflectometer (OFDR) and …

Quasi-Distributed Fiber-Optic Sensor With Large Measurement Range for Both Static and Dynamic Signals

R Niu, Q Liu, Y Deng, Y Chang… - Journal of Lightwave …, 2024 - ieeexplore.ieee.org
Distributed fiber-optic vibration and temperature sensor are very important for many
applications. However, existing multi-parameter sensing systems are usually based on a …