Application of ultra-weak fiber Bragg grating sensing array to road
In this paper, we introduce ultra-weak fiber Bragg grating (UWFBG) sensing technology for road vehicle flow, vehicle axle and wheelbase detection. We carry out pilot installation of UWFBG
Ultra-Weak Fiber Bragg Grating Sensing Network Coated with
An ultra-weak FBG array has been proved to be one of the most promising solutions for huge-capacity fiber sensing networks. In this work, we proposed and demonstrated a sensing array for multi
Research on the Ultra-Weak Reflective Fiber Bragg Grating Sensing
We present the analysis of a quasi-distributed fiber sensor based on the concatenation of identical low-reflective fiber Bragg gratings (FBGs) taking into account both multireflection and...
Strength properties of femtosecond-induced defects and weak Bragg
The paper reports the results of a study of the point defects and weak fiber Bragg gratings strength characteristics created for distributed sensor systems, depending on the parameters of the
Ultrashort Weak Fiber Bragg Grating-Based High-Sensitivity Optical
Abstract: We demonstrate an optical fiber refractive index (RI) sensor based on an ultrashort weak fiber Bragg grating (FBG), which exhibits a high sensitivity for the low RI range.
A novel demodulation technique for identical weak fiber Bragg grating
A high speed quasi-distributed demodulation method based on the microwave photonics and the chromatic dispersion effect is designed and implemented for weak fiber Bragg gratings (FBGs).
Spectral Analysis Using a Dispersive Microwave Photonics Link
We report on the use of a dispersive microwave photonics analog optical link for spectral analysis and wavelength measurement in optical fiber sensors. The system is built on the concept of
Acoustic emission source localization in plates using fiber Bragg
This paper presents a novel AE localization methodology that integrates the intrinsic directional selectivity of fiber Bragg grating (FBG) sensors with time reversal (TR) processing to
Synergistic mechanical parameter regulation and signal processing
Signal processing links mechanical behavior to defect characterization by extracting information from noisy sensor data , , . Fiber Bragg grating (FBG) sensors are suitable for
Ultrafast and Precise Interrogation of Fiber Bragg Grating Sensor
An interrogation scheme based on wavelength-to-time mapping to achieve ultrafast, high-precision, and large dynamic range interrogation of fiber Bragg grating (FBG) sensors is proposed
Adaptive Fiber Bragg Grating Sensor Network for Structural Health
Abstract A passive structural health monitoring (SHM) system for locating foreign-object impact using a network of fiber Bragg grating (FBG) sensors that monitor high frequency dynamic
Intelligent Monitoring of Polymer Drag Reduction in Turbulent Flow
This study pro-poses a novel non-intrusive intelligent monitoring system based on Fiber Bragg Grating (FBG) sensing and Artificial Intelligence (AI). An experimental setup was constructed
Polymer optical fiber bragg gratings for multiparameter analysis in
Abstract This paper presents the development of a polymer optical fiber Bragg grating (POFBG)-based sensor system for measurement of vibration, force amplitude and position for fixed
Fiber optic monitoring technology (FBG) on the deformation law of
A multi-source monitoring system integrating fiber Bragg grating (FBG) sensors, earth pressure cells, and displacement gauges was established, and numerical simulations were
Simultaneous Measurement for Displacement and Temperature Using Fiber
A novel fiber Bragg grating (FBG) sensing configuration for simultaneous measurements of temperature and displacement based on a core diameter mismatch is proposed and experimentally
Modified F-matrix calculation of Bragg grating spectra and its use with
Using the index growth surface, the compound growth rule, and the modified F-matrix technique, the spectra of weak FBGs similar to those found in distributed fiber sensor systems are
Calibration of a Phase-Shift Formed in a Linearly Chirped Fiber Bragg
A novel scheme for quantitative calibration of a phase-shift formed in a linearly chirped fiber Bragg grating is numerically and experimentally demonstrated, which is based on the utilization of
Fiber Bragg Grating Sensors: Principles and Applications
Fiber Bragg grating (FBG) optical sensors have emerged as a leading technology for distributed strain and temperature measurement. Their unique attributes—compactness, immunity to electromagnetic
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