A fiber Bragg grating based earth and water pressures transducer with three-dimensional fused deposition modeling for soil mass
TLDR
In this paper , a fiber Bragg grating (FBG) sensor with three-dimensional (3D) fused deposition modeling (FDM) approach is proposed for effective stress measurement in soil mass.Abstract:
A novel fiber Bragg grating (FBG) sensor with three-dimensional (3D) fused deposition modeling (FDM) approach is proposed for effective stress measurement in soil mass. The three-diaphragm structure design is developed to measure earth and water pressures simultaneously. The proposed transducer has advantages of small size, high sensitivity, low cost, immunity to electromagnetic interference and rapid prototyping. The working principle, design parameters, and manufacturing details are discussed. The proposed transducer was calibrated for earth and water pressures measurement by using weights and a specially designed pressure chamber, respectively. The calibration results showed that the wavelength of the transducer was proportional to the applied pressure. The sensitivity coefficients of the earth and water pressures were 12.633 nm/MPa and 6.282 nm/MPa, respectively. Repeated tests and error analysis demonstrated the excellent stability and accuracy of the earth and water pressure measurements. The performance of the proposed transducer was further verified by a model experimental test and numerical analysis, which indicated that the proposed transducer has great potential for practical applications. read more
Citations
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References
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Fiber Bragg grating technology fundamentals and overview
K.O. Hill,G. Meltz +1 more
TL;DR: Fiber Bragg grating (FBG) technology has been extensively studied in the literature as mentioned in this paper, where the basic techniques for fiber grating fabrication, their characteristics, and the fundamental properties of fiber gratings are described.
Journal ArticleDOI
Fibre Bragg gratings in structural health monitoring—Present status and applications
Mousumi Majumder,Tarun Kumar Gangopadhyay,Ashim Kumar Chakraborty,Kamal Dasgupta,D.K. Bhattacharya +4 more
TL;DR: The recent research and development activities in structural health monitoring using FBG sensors have been critically reviewed, highlighting the areas where further work is needed.
Journal ArticleDOI
Application of FBG sensors for geotechnical health monitoring, a review of sensor design, implementation methods and packaging techniques
TL;DR: An overview of the recent development and application of FBG based sensors for health monitoring of several key geotechnical structures, including soil nail systems, slopes, and piles are reviewed in this paper.
Journal ArticleDOI
Analytical solution for longitudinal vibration of a floating pile in saturated porous media based on a fictitious saturated soil pile model
TL;DR: In this paper, a new analytical approach for the vertical vibration of a floating pile in saturated viscoelastic soil is proposed, by combining the differential operator method with a fictitious saturated soil pile (FSSP) model.
Journal ArticleDOI
Investigation of the evolutionary process of a reinforced model slope using a fiber-optic monitoring network
TL;DR: In this article, an innovative quasi-distributed fiber-optic sensing network based on the fiber Bragg grating (FBG) technology was developed to monitor the strain distributions of the soil nails, the slope subsurface displacements, and the internal strains of soil mass, together with laser displacement transducers for surface displacement measurement.