Strain transfer of fiber Bragg grating sensors in fiber-reinforced
A new unified strain transfer model is proposed to quantify measurement loss of fiber Bragg grating (FBG) sensors in CFRP. The effect of geometric factors of CFRP on strain transfer
A new unified strain transfer model is proposed to quantify measurement loss of fiber Bragg grating (FBG) sensors in CFRP. The effect of geometric factors of CFRP on strain transfer
Fiber Bragg gratings (FBGs) are inherently sensitive to temperature, axial strain, and pressure, which can be easily measured by a shift of the Bragg wavelength in
In this paper, a high precision fiber Bragg grating (FBG) displacement sensor with embedded spring is developed to monitor structural displacement variation even at very small
This paper discusses the problems associated with the use of Fiber Bragg Grating (FBG) sensors to detect internal damage to composite specimens under low frequency cycling. This work
We demonstrate the iterative layer-peeling algorithm (LPA) for designing fiber Bragg gratings (FBGs). The algorithm includes explicit fabrication
A highly sensitive refractive index sensor based on a fiber in-line Mach–Zehnder interferometer sensor based on single-mode–tapered thin-core–single-mode fiber is proposed.
The sensor incorporates a linearly chirped fiber Bragg grating (LCFBG), with a portion of the grating bonded at both ends and suspended at the center of an elastic hollow structure, while the remaining
This paper develops a fiber Bragg grating (FBG) flexible cable strain sensor protected by flexible armored tube. Firstly, the sensing and train transfer properties of the developed sensor are
The fiber Bragg grating (FBG) sensors have some additional advantages over conventional electrochemical sensors, such as low
A fiber grating sensor capable of distinguishing between temperature and strain, using a reference and a dual-wavelength fiber Bragg grating, is presented. Error analysis and measurement
Abstract Cholesterol is one of the key indicators in clinical biochemical testing and the diagnosis and treatment for diseases. Here we develop a high-sensitivity cholesterol concentration
A variation of the period of the grating inscripted in a fiber optic – induced by mechanical or thermal perturbation – causes a shift of the reflected peak wavelength, due to the related optical path length
In this work, an introduction to the modeling of shear strains within fiber-Bragg-gratings is given. We discuss reasonable approximations for the simplification of the theoretical model.
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The fiber Bragg grating (FBG) flexible sensor, developed by the combination of flexible material and an FBG sensor, is widely used in geotechnical engineering health monitoring due to its
Considering the fabrication cost of the sensor and the allowable range of error, a sensing-point-layout interval of 100 mm was chosen. The
The feasibility and effectiveness of the simulation theory were verified by carrying out deformation-sensing experiments on the developed FBG flexible
Abstract and Figures A method for inscribing fiber bragg gratings (FBG) using direct, point-by-point writing by an infrared femtosecond laser was
As we embark on this editorial review, our focus is unwaveringly set on the recent research advancements in FBGs and their applications in optical
Three fiber Bragg grating (FBG) sensors are arranged near the negative electrode, near the positive electrode, and in the middle of the battery, respectively. Strains at multiple positions are
The radiation-induced Bragg wavelength shift, resulting from refractive index changes and defect formation, presents a significant measurement error influenced by factors such as grating
A fiber Bragg grating (FBG)-enabled smart washer for bolt pre-load measurement: design, analysis, calibration, and experimental validation. Sensors 2018; 18 (8): 2586.
Fiber Bragg grating has embraced the area of fiber optics since the early days of its discovery, and most fiber optic sensor systems today make use of fiber Bragg
In this paper, our objective is to review the various techniques to measure the temperature and strain using FBGs in different industrial sectors. An In-depth analysis of FBG is also incorporated
In this study, we propose a novel soft system (SS) based on one fiber Bragg grating sensor (FBG) embedded in a soft polymeric matrix for LOR detection during the epidural puncture. The SS was
The fire resistance of external pipelines in aero-engines is of significant importance for enhancing engine reliability. Conventional electrical sensors face limitations in measuring fluid space
This paper presents analysis and experiment on simultaneous measurement of strain and temperature using pair of etched and un-etched fiber Bragg grating (FBG) fabricated in a single
A 70 MPa Type IV hydrogen composite pressure vessel (CPV) was instrumented with embedded Fiber Bragg Grating (FBG) sensors to realize in situ strain monitoring during hydraulic
Fiber Bragg Gratings or FBGs have achieved significant attention towards sensing and communication applications due to their outstanding advantages. Due to its high sensitivity towards
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