Fiber Bragg grating accelerometer-based nonintrusive flow rate measurements and leak detection

Jiang, Kecheng; Liang, Lei; Hu, Chenghui; Liu, Xiaobin

doi:10.1364/ao.408548

Cited by 2 publications

(3 citation statements)

References 30 publications

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“…The fiber-optic-based accelerometers have found their way into water leak detection and localization. For instance, Jiang et al (2020) manufactured a reliable and convenient fiber-optics accelerometer to detect leaks in water pipes. The accelerometer was designed considering high sensitivity, fast response time, compact size, and the capability of long-distance reach and long-term monitoring.…”

Section: Accelerometer-based Fiber Opticsmentioning

confidence: 99%

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Application of fiber optics in water distribution networks for leak detection and localization: a mixed methodology-based review

et al. 2021

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This study reviews the state-of-the-art application of fiber optics in water distribution networks for leak detection and localization. The use of fiber optics in the oil and gas sector has been well-established; however, its potential in water pipelines is not evident owing to limited research. This study, therefore, presents the research developments of fiber optics in water leak detection and localization using the mixed methodology approach by integrating bibliometric and systematic analyses. A scientometric analysis is carried out to analyze the science maps of (1) journal sources, (2) contributing countries, and (3) co-occurrence of influential keywords. The systematic analysis evaluates the use of eight types of fiber optics, such as accelerometer-based fiber optics and hydrophone-based fiber optics, in water leak detection and localization. The review reveals five important directions for future research such as real network-based studies and the development of hybrid techniques.

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Section: Accelerometer-based Fiber Opticsmentioning

confidence: 99%

“…The accelerometer was composed of a base, a flexible hinge, a mass block, a fiber Bragg grating sensor, and a protective metal shell. The study provided research-based evidence that could improve the relationship between the velocity of flow and vibration ( Jiang et al 2020).…”

Section: Accelerometer-based Fiber Opticsmentioning

confidence: 99%

Application of fiber optics in water distribution networks for leak detection and localization: a mixed methodology-based review

et al. 2021

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“…Optical fiber sensors (OFS) emerge as a promising avenue, marked by their affordability, immunity to electromagnetic interference (EMI) and corrosion, and their distributed sensing capability [11]- [18]. Recent studies showcase innovative OFS approaches for leak detection, ranging from active distributed temperature sensing (DTS), interferometers to Raman fiber sensor systems [19]- [22].…”

Section: Introductionmentioning

confidence: 99%

Optical fiber specklegram sensor for water leak detection and localization

Inalegwu,

Roman,

Mumtaz

et al. 2024

Optical Waveguide and Laser Sensors III

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This work presents a distributed optical fiber specklegram sensor (FSS) specifically designed for the detection and localization of water leaks. The sensor analyzes specklegram images generated by a No-Core Fiber (NCF) under different water leak conditions, employing a low-cost CCD camera as an interrogation unit. To enhance the accuracy of leak detection, a convolutional neural network (CNN) model is employed to post-process the specklegram images for monitoring the different water leak conditions. The sensor demonstrates high sensitivity, accurately detecting water volumes as small as 0.1 mL. In the initial series of experiments, the sensor achieved a remarkable 100% accuracy in predicting the location of leak spots situated 1 cm apart. However, in subsequent rounds of the experiment, a slight reduction in accuracy was observed (87.5%) due to the issue of water droplet overflow across the Kapton tape used to mark the various test leak spots after multiple cycles of water addition and removal. Therefore, employing an impermeable material for the demarcation will mitigate the water droplet overflow problem. In summary, the proposed sensor offers an efficient approach for water leak detection through the application of machine learning-based specklegram analysis. The findings of this research underscore the potential of FSS as a low-cost, easily implementable, and real-time monitoring system for the detection and localization of water leaks.

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Fiber Bragg grating accelerometer-based nonintrusive flow rate measurements and leak detection

Abstract: We aim to develop a nonintrusive, reliable, convenient flow rate measurement and leak detection method. The flow rate is known to be related to the vibration excited by the turbulent internal flow, but there exists some scatter in the vibration data at low flow speeds ( < Show more

Cited by 2 publications

References 30 publications

Application of fiber optics in water distribution networks for leak detection and localization: a mixed methodology-based review

Application of fiber optics in water distribution networks for leak detection and localization: a mixed methodology-based review

Optical fiber specklegram sensor for water leak detection and localization

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