Development of an optical fibre sensor system for ground displacement
In this study, a standard optical fibre was used as a distributed strain sensor to simultaneously monitor multiple subterranean parameters: pore water pressure and bi-directional
Principle
Fiber
Optic
Grating
Fiber Bragg Grating Sensors: Design, Applications, and
These studies demonstrated the ability of FBG sensors to accurately measure strain, displacement, and temperature changes in real time, which are critical for assessing the integrity of
An Fiber Bragg Grating-Based Monitoring System for Slope
To achieve multi-parameter and real-time monitoring, a comprehensive fiber Bragg grating (FBG) monitoring system including miniaturized anchors, earth pressure gauges, inclinometer pipe
Design and investigation of a novel optic fiber sensor based on OTDR
Abstract The paper presents an innovative fiber optic displacement sensor with a wide and linear measurement range, which capitalizes on the principle of macro-bending loss. The sensor
Measuring Soil Strain Using Fibre Optic Sensors
Monitoring subsurface soil movement is important in many geotechnical engineering applications such as stability of slopes, road embankments and settlement in foundations. Soil
Measurement-Error Analysis of Fiber Bragg Grating Flexible
Monitoring geotechnical structures and providing real-time early warning is a key measure to mitigate the impacts of disasters (slope slip, subsidence, dam deformation, bridge
Fiber Bragg grating (FBG)-based sensors: a review of technology and
Structural health monitoring (SHM) is essential for ensuring the safety and longevity of civil engineering structures, particularly as many aging infrastructures face increased stress and
Zhenyang Feng1 and Juan Deng2,*
Bragg gratings exhibit cross-sensitivity to temperature and strain, such that changes in external temperature or strain cause variations in the geometric dimensions of the fiber grating, resulting in a
Review of Fiber Optic Displacement Sensors
This article reviews specifically the advanced fiber optic displacement sensing techniques that have been developed in the past two decades.
A review of previous studies on the applications of fiber optic sensing
In this paper, the working principle of different fiber optic sensing technologies, the development of fiber optic-based sensors, and the recent application status of these sensing
Applications of fibre Bragg grating sensors for monitoring geotechnical
In recent years, much attention has been paid towards optical fibre sensing technology for geotechnical health monitoring. This paper highlighted different types of optical fibre with a special
Review of Fiber Optic Displacement Sensors
Details regarding the working principle, sensor design, and performance measures of FBG-based, interferometers-based (including the Fabry–Perot interferometer, the Michelson interferometer, and
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Automated monitoring of deep excavations using fiber bragg grating
This study presents an integrated automated monitoring system for foundation pits based on fiber Bragg grating (FBG) technology. The system enables real-time measurement of diaphragm
(INVITED)Advances in fiber optic sensors for soil moisture monitoring
Recently, the fiber Bragg grating (FBG) sensor has been widely used for monitoring of several parameters as temperature, strain, displacement, pressure, pH value, humidity, high
Brillouin Optical Time Domain Analysis for Geotechnical Monitoring
In this paper, we show some recent experimental applications of Brillouin optical time-domain analysis (BOTDA) based sensors for geotechnical monitoring. In particular, how these
Investigation of the evolutionary process of a reinforced model slope
In the model test, an innovative quasi-distributed fiber-optic sensing network based on the fiber Bragg grating (FBG) technology was developed to monitor the strain distributions of the soil
Applications of fibre Bragg grating sensors for monitoring geotechnical
A comprehensive review of recent research and development activities in geotechnical health monitoring using FBG-based sensors including ground, slope, pile and pullout, moisture,
Open Access proceedings Journal of Physics: Conference series
Nowadays, fiber Bragg grating monitoring technology has been successfully applied in tunnels, slopes, dams, bridges and other engineering fields [2-8]. In the construction monitoring of soft foundation
Review of fiber optic sensors in geotechnical health monitoring
Based on the measured strains, three algorithms for transforming monitored data to required displacement were investigated. Comparison analysis regarding typical advantages and
Applications of Optical Fiber Sensors in Geotechnical
The current study investigates the feasibility and performance of Fiber Bragg Grating (FBG) optical sensors in geotechnical engineering applications, aiming to demonstrate their broader
Fiber-Bragg-Grating-Based Displacement Sensors: Review of Recent
With the development of fiber optical technologies, fiber Bragg grating (FBG) sensors are frequently utilized in structural health monitoring due to their considerable advantages, including fast
Fiber Optic Sensors: Short Review and Applications
Fiber Bragg gratings (FBGs) are among the most utilized fiber optic sensors due to their high sensitivity toward physical parameters, which makes them preferable for various sensing
Review of fiber optic sensors in geotechnical health monitoring
This paper reviews the development of two common types of fiber optic sensors (fiber Bragg grating sensors and bend loss based fiber optic sensors) for geotechnical health monitoring,
(PDF) Application of Fibre Bragg grating sensors for accurate
This research explores the deployment of Fiber Bragg Grating (FBG) fiber-optic sensors for embedded, high-precision deformation monitoring in civil infrastructure.
Distributed fiber optic sensors for tunnel monitoring: A state-of-the
Distributed fiber optic sensors (DFOSs) possess the capability to measure strain and temperature variations over long distances, demonstrating outstanding potential for monitoring
Research on residual deformation of deep soil in mining subsidence
This study combines the high-precision fixed-point monitoring capability of quasi-distributed fiber Bragg grating (FBG) sensing technology and the distributed high-precision
Real-time aggregation forces monitoring in varied soil
Abstract The study investigates the effectiveness of Fiber Bragg Grating (FBG) sensors in measuring real-time aggregation forces across soils with varying particle sizes.
Optical fiber Bragg grating-based pressure sensor for soil monitoring
A Fiber Bragg Grating (FBG)-based inclinometer has been developed for field use, designed to incorporate biaxial 3-dimensional (3D) printed tilt sensors (in which four FBGs were used).
Automated monitoring of deep excavations using fiber bragg grating
Fiber Bragg Grating (FBG) sensing technology is an advanced monitoring approach that utilizes wavelength-division multiplexing (WDM) and the shift in Bragg wavelength generated during