Investigation of the Temperature Compensation of FBGs Encapsulated With Different Methods and Subjected to Different Temperature Change Rates

Li, Xiong; Jiang, Guozhang; Guo, Yongxing; Kuang, Yi; Liu, Honghai

doi:10.1109/jlt.2018.2883817

Cited by 22 publications

(7 citation statements)

References 21 publications

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“…In Ref. 170, different encapsulation methods were discussed for temperature compensation. In the first method, two similar FBG were pasted on the opposite side of elastomer, which would result in positive and negative strain induced due to compressive and tensile strain.…”

Section: Temperature Compensation Techniques In Fbgmentioning

confidence: 99%

Fiber Bragg grating sensors for monitoring of physical parameters: a comprehensive review

2020

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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 grating technology. Researchers have gained enormous attention in the field of fiber Bragg grating (FBG)-based sensing due to its inherent advantages, such as small size, fast response, distributed sensing, and immunity to the electromagnetic field. Fiber Bragg grating technology is popularly used in measurements of various physical parameters, such as pressure, temperature, and strain for civil engineering, industrial engineering, military, maritime, and aerospace applications. Nowadays, strong emphasis is given to structure health monitoring of various engineering and civil structures, which can be easily achieved with FBG-based sensors. Depending on the type of grating, FBG can be uniform, long, chirped, tilted or phase shifted having periodic perturbation of refractive index inside core of the optical fiber. Basic fundamentals of FBG and recent progress of fiber Bragg grating-based sensors used in various applications for temperature, pressure, liquid level, strain, and refractive index sensing have been reviewed. A major problem of temperature cross sensitivity that occurs in FBG-based sensing requires temperature compensation technique that has also been discussed in this paper.

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Section: Temperature Compensation Techniques In Fbgmentioning

confidence: 99%

Fiber Bragg grating sensors for monitoring of physical parameters: a comprehensive review

2020

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“…Nonetheless, as shown in previous subsection, FOS continue to be an important research topic of interest, aiming to overcome some of their challenges and improve their performances (e.g. [8][9][10][11][12][13][14][15][16][17][18]). In addition, great efforts are put in widening their applicability, e.g.…”

Section: Discussionmentioning

confidence: 99%

“…In order to address the challenge of thermal compensation of FBG sensors, in recent years researchers focus on finding compensation functions applied to the measurement and compensation FBG sensing elements (e.g. [8][9][10]). While this improves accuracy of measurements, it does not reduce the number of FBG sensing elements per sensor.…”

Section: Advances In Science and Technology To Meet Challengesmentioning

confidence: 99%

Roadmap on measurement technologies for next generation structural health monitoring systems

Laflamme

Ubertini

Matteo

et al. 2023

Meas. Sci. Technol.

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Structural Health Monitoring (SHM) is the automation of the condition assessment process of an engineered system. When applied to geometrically large components or structures, such as those found in civil and aerospace infrastructure and systems, a critical challenge is in designing the sensing solution that could yield actionable information. This is a difficult task to conduct cost-effectively, because of the large surfaces under consideration and the localized nature of typical defects and damages. There has been significant research efforts in empowering conventional measurement technologies for applications to SHM in order to improve performance of the condition assessment process. Yet, the field implementation of these SHM solutions is still in its infancy, attributable to various economic and technical challenges. The objective of this Roadmap publication is to discuss modern measurement technologies that were developed for SHM purposes, along with their associated challenges and opportunities, and to provide a path to research and development efforts that could yield impactful field applications.

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“…Cantilever beam has the characteristics of simple structure and stable performance, becoming the classic elastic element of the low-frequency vibration FBG sensor (Wang et al , 2015a, 2015b). In this kind of structure, as FBG has two encapsulation modes of complete encapsulation and two-point encapsulation, the performance of this sensor will change with the change of encapsulation mode (Kuang et al , 2018; Xiong et al , 2019). The following will introduce this type of FBG acceleration sensor from different encapsulation modes.…”

Section: Fiber Bragg Grating-based One-dimensional Acceleration Sensormentioning

confidence: 99%

Fiber Bragg grating based acceleration sensors: a review

Guo

Chen

et al. 2021

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Purpose The purpose of this study is to present the state of the art for fiber Bragg grating (FBG) acceleration sensing technologies from two aspects: the principle of the measurement dimension and the principle of the sensing configuration. Some commercial sensors have also been introduced and future work in this field has also been discussed. This paper could provide an important reference for the research community. Design/methodology/approach This review is to present the state of the art for FBG acceleration sensing technologies from two aspects: the principle of the measurement dimension (one-dimension and multi-dimension) and the principle of the sensing configuration (beam type, radial vibration type, axial vibration type and other composite structures). Findings The current research on developing FBG acceleration sensors is mainly focused on the sensing method, the construction and design of the elastic structure and the design of a new information detection method. This paper hypothesizes that in the future, the following research trends will be strengthened: common single-mode fiber grating of the low cost and high utilization rate; high sensitivity and strength special fiber grating; multi-core fiber grating for measuring single-parameter multi-dimensional information or multi-parameter information; demodulating equipment of low cost, small volume and high sampling frequency. Originality/value The principle of the measurement dimension and principle of the sensing configuration for FBG acceleration sensors have been introduced, which could provide an important reference for the research community.

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Investigation of the Temperature Compensation of FBGs Encapsulated With Different Methods and Subjected to Different Temperature Change Rates

Cited by 22 publications

References 21 publications

Fiber Bragg grating sensors for monitoring of physical parameters: a comprehensive review

Fiber Bragg grating sensors for monitoring of physical parameters: a comprehensive review

Roadmap on measurement technologies for next generation structural health monitoring systems

Fiber Bragg grating based acceleration sensors: a review

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