Design and in-the-field performance evaluation of compact FBG sensor system for structural health monitoring applications

Kerrouche, Abdelfateh; Boyle, W.J.O.; Sun, Tao; Grattan, K. T. V.

doi:10.1016/j.sna.2009.01.021

Cited by 41 publications

(22 citation statements)

References 10 publications

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“…Although at the time FBG fabricating technology and fiber sensing technology were immature, it had important reference value to the present study [11]. Currently, Kerrouche et al employed FBG strain sensors and FBG temperature sensors to perform structural integrity monitoring of the Mjosund bridge in western Norway, [12], and Li et al used 10 metal groove encapsulated sensors 2 Advances in OptoElectronics to measure the surface strain of second lining of a tunnel [13]. The results demonstrated that FBG sensors could operate successfully in a continuous manner and under harsh environmental conditions.…”

Section: Introductionmentioning

confidence: 94%

Multiplexed FBG Monitoring System for Forecasting Coalmine Water Inrush Disaster

Liu

Wang

et al. 2012

Advances in OptoElectronics

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This paper presents a novel fiber-Bragg-grating-(FBG-) based system which can monitor and analyze multiple parameters such as temperature, strain, displacement, and seepage pressure simultaneously for forecasting coalmine water inrush disaster. The sensors have minimum perturbation on the strain field. And the seepage pressure sensors adopt a drawbar structure and employ a corrugated diaphragm to transmit seepage pressure to the axial strain of FBG. The pressure sensitivity is 20.20 pm/KPa, which is 6E3 times higher than that of ordinary bare FBG. The FBG sensors are all preembedded on the roof of mining area in coalmine water inrush model test. Then FBG sensing network is set up applying wavelength-division multiplexing (WDM) technology. The experiment is carried out by twelve steps, while the system acquires temperature, strain, displacement, and seepage pressure signals in real time. The results show that strain, displacement, and seepage pressure monitored by the system change significantly before water inrush occurs, and the strain changes firstly. Through signal fusion analyzed it can be concluded that the system provides a novel way to forecast water inrush disaster successfully.

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Section: Introductionmentioning

confidence: 94%

Multiplexed FBG Monitoring System for Forecasting Coalmine Water Inrush Disaster

Liu

Wang

et al. 2012

Advances in OptoElectronics

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“…Because the nuclear containment building is pre-built and its structure must be keep integrated without any change, sensors can only mount on the surface of building shield. These sensors sense interested operating characteristics of structure such as strain, temperature, humidity, etc [6,7].…”

Section: Parameters Of Target Buildingmentioning

confidence: 99%

Specialized Sensors and System Modeling for Safety-critical Application

Jeong¹

2014

Journal of Electrical Engineering and Technology

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-Special purpose sensor design using MEMS (Micro-Electro-Mechanical Systems) technique is commonly used in Nondestructive Testing (NDT) research for the evaluation of existing structures and for the safety control and requirements. Various sensors and network have been developed for general infrastructures as well as safety-critical applications, e.g., aerospace, defense, and nuclear system, etc. In this paper, one of sensor technique using Fiber Bragg Gratings (FBG) and Finite Element Method (FEM) evaluation is discussed. The experimental setup and data collection technique is also demonstrated. The factors influencing test result and the advantages/limitations of this technique are also reviewed using various methods.

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“…An intensive review of the use of fibre optics for structural condition monitoring has been undertaken [1] showing a number of techniques, amongst which the most widely used are Fibre Bragg Grating (FBG)-based techniques [2]. FBGs produce wavelength encoded signals which are not susceptible to instrumental drift and environmental interference and have proven to be more robust and reliable, suitable for operation in harsh working conditions.…”

Section: Introductionmentioning

confidence: 99%

Optical fibre sensing: a solution for industry

Sun

Fabian

et al. 2017

SPIE Proceedings

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This is the accepted version of the paper.This version of the publication may differ from the final published version. Permanent repository link ABSTRACTOptical fibres have been explored widely for their sensing capability to meet increasing industrial needs, building on their success in telecommunications. This paper provides a review of research activities at City University of London in response to industrial challenges through the development of a range of fibre Bragg grating (FBG)-based sensors for transportation structural monitoring. For marine propellers, arrays of FBGs mapped onto the surface of propeller blades allow for capturing vibrational modes, with reference to simulation data. The research funded by EU Cleansky programme enables the development of self-sensing electric motor drives to support 'More Electric Aircraft' concept. The partnership with Faiveley Brecknell Willis in the UK enables the integration of FBG sensors into the railway current-collecting pantographs for real-time condition monitoring when they are operating under 25kV conditions.

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Design and in-the-field performance evaluation of compact FBG sensor system for structural health monitoring applications

Cited by 41 publications

References 10 publications

Multiplexed FBG Monitoring System for Forecasting Coalmine Water Inrush Disaster

Multiplexed FBG Monitoring System for Forecasting Coalmine Water Inrush Disaster

Specialized Sensors and System Modeling for Safety-critical Application

Optical fibre sensing: a solution for industry

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