Leak detection in a pipe using Fibre Bragg Grating sensor

Loman, M.; Hafizi, Z. M.

doi:10.1088/1757-899x/469/1/012111

Cited by 3 publications

(2 citation statements)

References 4 publications

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“…The National Aeronautics and Space Administration [ 14 ] installed a fiber Bragg grating sensor network to measure strain and temperature on the space shuttle X-33 for real-time health monitoring. Other scholars have carried out uniaxial compression experiments on rock samples to compare the axial strain of grating and strain gauge, and found that they have the same change rule and that the grating value was significantly better than the strain gauge [ 15 ]; a fiber Bragg grating strain sensor was used to measure the circumferential strain of a pipeline to monitor pipeline leakage [ 16 ]. Civil facilities [ 17 ], bridge structures [ 18 ], and pipeline landslides [ 19 ] can also be monitored to achieve early detection and positioning of settlement, landslides, erosion, and other events [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

Cylindrical Bidirectional Strain Sensors Based on Fiber Bragg Grating

et al. 2022

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To realize continuous real-time monitoring of the large-scale internal strain field of coal and rock mass, a bidirectional strain sensor based on FBGs encapsulated using a hollow cylindrical steel tube was designed. The sensor’s structural parameters were optimized through unidirectional loading, and the strain change laws of the sensor were analyzed under unidirectional and bidirectional loading conditions, in which the stress-strain fitting curves of the sensor and the relationships of the strain in the vertical and horizontal directions were obtained under different lateral pressure loading conditions. A similar theoretical model was established to verify the accuracy of the linear relationship between the surrounding rock stress and the strain measured by the sensor system.

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Section: Introductionmentioning

confidence: 99%

Cylindrical Bidirectional Strain Sensors Based on Fiber Bragg Grating

et al. 2022

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“…Leakage in urban WDN results in water resource losses and potential water pollution incidents to invade harmful substances [1,2]. Hence, it is necessary to monitor the operation status of WDN in real time and locate the leakages in time to guarantee its safe and reliable operation [3][4][5]. So far, much research has been conducted for leak detection and location methods in WDN.…”

Section: Introductionmentioning

confidence: 99%

The Application of K Value Adaptive VMD Method in Pipeline Leakage Location

Liu

Yang

Sun

et al. 2021

Mathematical Problems in Engineering

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The research about online monitoring and leakage automatic location of water distribution networks (WDN) has a wide range of applications that include water resource protection, monitoring, and allocation. Variational mode decomposition (VMD) and cross-correlation (CC) based leakage location is a popular and effective method in WDN. However, the value of K intrinsic mode functions (IMFs) based on VMD decomposition needs to be determined artificially, which affects the separation effect of signal frequency band characteristics directly. Hence, this work proposes an adaptive method to determine the parameter K of leakage vibration signal’s IMFs, which will be applied to automatic leakage location in WDN. Firstly, the number of saddle points in the frequency domain envelope of the sampled signal in different step sizes is calculated. The parameter K is determined according to the curvature change of the number of saddle points and the sampled signal. Finally, the selective IMFs are reconstituted into a new signal, which can determine a leak position using CC based time-delay estimation (TDE). To verify the effectiveness of the proposed algorithm, the different methods based on EMD and Fast ICA are compared. The experimental results demonstrate that the proposed parameter K value adaptive VMD (KVA-VMD) decomposition method is more suitable for leakage location in WDN.

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Design and Analysis of Oil Pipeline Leakage Detection Model using WDM FBG Sensors through Simulation of Temperature and Strain Effects

Kumar

Singh

2023

2022 OPJU International Technology Conference on Emerging Technologies for Sustainable Development (OTCON)

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Leak detection in a pipe using Fibre Bragg Grating sensor

Cited by 3 publications

References 4 publications

Cylindrical Bidirectional Strain Sensors Based on Fiber Bragg Grating

Cylindrical Bidirectional Strain Sensors Based on Fiber Bragg Grating

The Application of K Value Adaptive VMD Method in Pipeline Leakage Location

Design and Analysis of Oil Pipeline Leakage Detection Model using WDM FBG Sensors through Simulation of Temperature and Strain Effects

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