High-sensitivity structure based on fiber Bragg grating sensor and its application in nonintrusive detection of pipeline pressure change

Shu, Qiming; Wu, Lei; Lu, Shunzhi; Xiao, Wensheng

doi:10.1016/j.measurement.2021.110444

Cited by 16 publications

(3 citation statements)

References 35 publications

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“…Fiber Bragg grating (FBG) is widely used in many applications, including telecommunication systems [1] and sensing purposes. In sensing applications, FBG has been used to monitor temperature [2]- [4], vibration [5], [6], pressure [7]- [9], strain [10]- [12] and acoustic [13], [14]. The vast sensing applications using FBG are due to its advantages, such as small sensor size, flexibility, non-electrical contact, immunity from electric and electromagnetic fields [15]- [17], and the ability to offer remote measurement with highperformance measurement.…”

Section: Introductionmentioning

confidence: 99%

Non-Uniformity of Non-Thermal Plasma Formation: Using FBG as Temperature Sensors

Musa,

Azmi,

Ibrahim

et al. 2023

Int. J. Adv. Sci. Eng. Inf. Technol.

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This research investigates fiber Bragg grating (FBG) temperature sensing performance in monitoring nonâ€”uniformity of non-thermal plasma (NTP) formation in a packed-bed reactor using FBG operating at atmospheric pressure. Two FBGs made from germanium doped fiber were embedded inside and outside the PBNTP reactor to allow for comparison between the temperatures inside and outside of the reactor to be made. Each FBG comes with three grating series, which allow the reactor temperatures at three different locations inside or outside the reactor to be measured and compared. Two types of plasma, namely nitrogen (N2) and argon (Ar) were generated in the reactor at a gas flow rate in the range of 2 - 7 L/min and applied voltage in the range of l - 20 kV. It was found that the PBNTP reactor temperature varies up to 20 oC at different positions inside and up to 40 oC outside of the reactor. This finding shows the non-uniformity of plasma formation and the nature of the plasma's localized thermodynamic equilibrium (LTE). The sensitivity of the FBG temperature sensor used in this study is estimated at 10.36 - 10.50 pm/oC.

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Section: Introductionmentioning

confidence: 99%

Non-Uniformity of Non-Thermal Plasma Formation: Using FBG as Temperature Sensors

Musa,

Azmi,

Ibrahim

et al. 2023

Int. J. Adv. Sci. Eng. Inf. Technol.

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“…FBG technology allows for the relatively easy and convenient implementation of FOS into a necessary architecture. FBG sensors are versatile in the matter of the parameters to be measured; for instance, strain [13,14], temperature [9,15], pressure [16], humidity [9,17], and many more can be measured and monitored. With regard to industry, FBG FOS realization is topical in structural health monitoring (SHM) applications for dams [10,18], pipelines [10,16], slopes [10], tunnels [10,19], bridges [10,20], railroads [21], roads [14,22], and so on.…”

Section: Introductionmentioning

confidence: 99%

Road Pavement Structural Health Monitoring by Embedded Fiber-Bragg-Grating-Based Optical Sensors

Braunfelds

Seņkāns

Šķēls

et al. 2022

Sensors

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Fiber Bragg grating (FBG) optical sensors are state-of-the-art technology that can be integrated into the road structure, providing real-time traffic-induced strain readings and ensuring the monitoring of the road’s structural health. By implementing specific FBG sensors, it is possible to detect each vehicle’s axle count and the induced strain changes in the road structure. In this study, FBG sensors are embedded at the top of the 240-mm-thick cement-treated reclaimed asphalt pavement mixture layer of the road (specifically, 25 mm deep within the road). Optical sensors’ signal interrogation units are used to measure the strain and temperature and collect data of the road’s passing vehicles, starting from passenger cars that have two axles and up to heavy trucks that have six axles. Passenger cars with 2 axles generate a typical (90% events) strain of 0.8–4.1 μm/m, the 2-axle minibus 5.5–8.5 μm/m, 2–3-axle trucks 11–26 μm/m, but 4–6-axle trucks 14–36 μm/m per each axle. A large number of influencing parameters determine the pavement design leading to the great uncertainty in the prediction of the strain at the boundary between the asphalt surface and cement-treated base layers. Real-time strain and temperature measurements help to understand the actual behavior of the pavement structure under an applied load, thus assisting in validating the proposed pavement design.

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“…However, this structure requires high ellipticity of the pipeline and is complicated to process and manufacture. Moreover, Shu et al [26] designed an FBG sensor mounted on a flexure hinge substrate. The experimental results showed that the strain can be magnified by 4.75 times the strain on the pipeline surface.…”

Section: Introductionmentioning

confidence: 99%

FBG-Based Sensitivity Structure Based on Flexure Hinge and Its Application for Pipeline Pressure Detection

Liu

Wang

et al. 2022

Materials

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With the widespread application of pipelines in engineering, more and more accidents occur because of pipeline leakage. Therefore, it is particularly important to continuously monitor the pipeline pressure. In this study, a non-intrusive and high-sensitivity structure based on FBG (Fiber Bragg grating) sensor is proposed. Firstly, the basic sensing theory of FBG and the state of a pipeline wall under inner pressure are analyzed. Then, structural sensitivity is deduced based on the flexure hinge and mechanical lever. Subsequently, finite element simulation for the whole sensitization structure is carried out, and optimal parameters are determined to obtain the maximum sensitivity. Finally, laboratory experiments are conducted to verify the function of the designed sensitivity structure. The experimental results show a good agreement with the simulation results. In the experiment, it can be found that the designed structure has a strain sensitivity of 9.59 pm/με, which is 11.51 times the pipeline surface strain. Besides, the structure is convenient to operate and has a good applied prospect for the engineering practice.

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High-sensitivity structure based on fiber Bragg grating sensor and its application in nonintrusive detection of pipeline pressure change

Cited by 16 publications

References 35 publications

Non-Uniformity of Non-Thermal Plasma Formation: Using FBG as Temperature Sensors

Non-Uniformity of Non-Thermal Plasma Formation: Using FBG as Temperature Sensors

Road Pavement Structural Health Monitoring by Embedded Fiber-Bragg-Grating-Based Optical Sensors

FBG-Based Sensitivity Structure Based on Flexure Hinge and Its Application for Pipeline Pressure Detection

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