Shape Sensing with Rayleigh Backscattering Fibre Optic Sensor

Xu, Cheng; Khodaei, Zahra Sharif

doi:10.3390/s20144040

Cited by 17 publications

(9 citation statements)

References 21 publications

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“…While FOSS are, at the present day, mature, well-established, and widely accepted tools for SHM, they still represent a vibrant area of research, which targets improvement of their performances. Examples of research topics are new sensors for high-temperature environments [ 92 , 93 ], a Brillouin-based sensing system for dynamic monitoring [ 34 , 94 ], improved spatial resolution of Brillion-based sensing systems (in a range of several mm to several cm) [ 37 , 95 ], measurement of strain and temperature using single fibers [ 96 ], new applications for distributed FOSS [ 35 , 97 , 98 , 99 , 100 ], etc. The best performances of commercially available distributed fiber-optic strain sensor monitoring systems are given in Table 3 .…”

Section: Second Generation: Discrete Short-gauge Long-gauge and Distr...mentioning

confidence: 99%

Concise Historic Overview of Strain Sensors Used in the Monitoring of Civil Structures: The First One Hundred Years

Glišić

2022

Sensors

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Strain is one of the most frequently monitored parameters in civil structural health monitoring (SHM) applications, and strain-based approaches were among the first to be explored and applied in SHM. There are multiple reasons why strain plays such an important role in SHM: strain is directly related to stress and deflection, which reflect structural performance, safety, and serviceability. Strain field anomalies are frequently indicators of unusual structural behaviors (e.g., damage or deterioration). Hence, the earliest concepts of strain sensing were explored in the mid-XIX century, the first effective strain sensor appeared in 1919, and the first onsite applications followed in the 1920′s. Today, one hundred years after the first developments, two generations of strain sensors, based on electrical and fiber-optic principles, firmly reached market maturity and established themselves as reliable tools applied in strain-based SHM. Along with sensor developments, the application methods evolved: the first generation of discrete sensors featured a short gauge length and provided a basis for local material monitoring; the second generation greatly extended the applicability and effectiveness of strain-based SHM by providing long gauge and one-dimensional (1D) distributed sensing, thus enabling global structural and integrity monitoring. Current research focuses on a third generation of strain sensors for two-dimensional (2D) distributed and quasi-distributed sensing, based on new advanced technologies. On the occasion of strain sensing centenary, and as an homage to all researchers, practitioners, and educators who contributed to strain-based SHM, this paper presents an overview of the first one hundred years of strain sensing technological progress, with the objective to identify relevant transformative milestones and indicate possible future research directions.

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Section: Second Generation: Discrete Short-gauge Long-gauge and Distr...mentioning

confidence: 99%

Concise Historic Overview of Strain Sensors Used in the Monitoring of Civil Structures: The First One Hundred Years

Glišić

2022

Sensors

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“…Comparison of DOFS and traditional strain gauges reveals that DFOS can provide distributed strain data using a simple setup and possesses high resolution, long range and remote monitoring capabilities. Among several types of distributed optical strain sensors such as fiber Bragg grating (FBG) or Rayleigh backscattering sensors (RBS) [ 1 ], backscattering based sensors have higher spatial resolution than FBG sensors [ 30 ]. The proposed fiber mesh is independent of the type of fiber strain sensor since only the geometry of the fiber and measurement information is required as inputs.…”

Section: Formulation Of Integrated Iga and Dfosmentioning

confidence: 99%

“…There are several types of distributed optical strain sensing technologies, namely fiber Bragg grating (FBG) sensors or backscattering based sensors such as Brillouin, Rayleigh and Raman [ 1 , 28 , 29 ]. FBG sensors have been widely used in the past research studies [ 7 , 8 ], but backscattering based sensors have recently received attention because of their improved spatial resolution and lateral sensing capabilities [ 3 , 6 , 11 , 30 ]. In addition, a backscattering based instrument can utilize an ordinary telecommunication type glass fiber without the need for any modification.…”

Section: Introductionmentioning

confidence: 99%

Advanced Structural Health Monitoring Method by Integrated Isogeometric Analysis and Distributed Fiber Optic Sensing

Aung

Kishida³

et al. 2021

Sensors

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Attempts in digital management of structures are among the most popular topics in the trend of Information of Things (IoT). However, the implementation lags behind. This work recognized that Computer Aided Design (CAD) comprises the core of modern engineering; thus, most digital information can be available if CAD is used not only in design but also for life cycle structural health monitoring (SHM). Based on this concept, the newly designed method utilizes the isogeometric analysis (IGA) tool to include the Distributed Fiber Optic Sensing (DFOS) information by proposing a fiber mesh model. The IGA model can be obtained directly from CAD, and the boundary conditions can be provided directly or indirectly from DFOS in real time and remotely. Hence a practical method of SHM is able to achieve highly efficient and accurate numerical model creation, which can even accommodate non-linear constitutive property of materials. The proposed method was applied to a pipe deformation model as an example. The inverse analysis method is also shown to determine the contact force for loading on the pipe, which shows the potential for many engineering applications.

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“…This kind of sensor exploits the intrinsic scattering along the fiber, mainly Raman, Brillouin and Rayleigh scatterings, for the smart sensing of the different physical parameters under study. Optical time-domain reflectometry (OTDR) based on Rayleigh, Raman, and Brillouin scatterings constituted the first generation of optical fiber sensors, being able of resolving temperature and strain with a spatial resolution from meters up to ~ 10 cm over some kilometers 3 , 7 . The desired spatial resolution and measurement range determine the scattering mechanism to be selected 5 , 8 .…”

Section: Introductionmentioning

confidence: 99%

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

Fuertes

Grégoire

Labranche

et al. 2021

Sci Rep

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Rayleigh scattering enhanced nanoparticles-doped optical fibers are highly promising for distributed sensing applications, however, the high optical losses induced by that scattering enhancement restrict considerably their sensing distance to few meters. Fabrication of long-range distributed optical fiber sensors based on this technology remains a major challenge in optical fiber community. In this work, it is reported the fabrication of low-loss Ca-based nanoparticles doped silica fibers with tunable Rayleigh scattering for long-range distributed sensing. This is enabled by tailoring nanoparticle features such as particle distribution size, morphology and density in the core of optical fibers through preform and fiber fabrication process. Consequently, fibers with tunable enhanced backscattering in the range 25.9–44.9 dB, with respect to a SMF-28 fiber, are attained along with the lowest two-way optical losses, 0.1–8.7 dB/m, reported so far for Rayleigh scattering enhanced nanoparticles-doped optical fibers. Therefore, the suitability of Ca-based nanoparticles-doped optical fibers for distributed sensing over longer distances, from 5 m to more than 200 m, becomes possible. This study opens a new path for future works in the field of distributed sensing, since these findings may be applied to other nanoparticles-doped optical fibers, allowing the tailoring of nanoparticle properties, which broadens future potential applications of this technology.

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Shape Sensing with Rayleigh Backscattering Fibre Optic Sensor

Cited by 17 publications

References 21 publications

Concise Historic Overview of Strain Sensors Used in the Monitoring of Civil Structures: The First One Hundred Years

Concise Historic Overview of Strain Sensors Used in the Monitoring of Civil Structures: The First One Hundred Years

Advanced Structural Health Monitoring Method by Integrated Isogeometric Analysis and Distributed Fiber Optic Sensing

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

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