Multi-measurement scheme for a fiber-optic sensor based on a single long-period grating

Delgado, Felipe S.; Santos, Alexandre Bessa dos

doi:10.1080/09500340.2017.1367854

Cited by 15 publications

(4 citation statements)

References 14 publications

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“…In addition, it plays an increasingly important role in fiber optic sensing because of its high measurement accuracy [105]. Recently, Delgado et al [106] proposed and discussed a scheme to measure multiple perturbations simultaneously using a single LPFG. Jin et al [107] proposed a novel sensor structure for the simultaneous measurement of strain and temperature and conducted experimental studies.…”

Section: Quasi-distributed Fiber Optic Sensorsmentioning

confidence: 99%

Fiber Optic Sensing Technology and Vision Sensing Technology for Structural Health Monitoring

Wang

Guo

Han

et al. 2023

Sensors

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Structural health monitoring is currently a crucial measure for the analysis of structural safety. As a structural asset management approach, it can provide a cost-effective measure and has been used successfully in a variety of structures. In recent years, the development of fiber optic sensing technology and vision sensing technology has led to further advances in structural health monitoring. This paper focuses on the basic principles, recent advances, and current status of applications of these two sensing technologies. It provides the reader with a broad review of the literature. It introduces the advantages, limitations, and future directions of these two sensing technologies. In addition, the main contribution of this paper is that the integration of fiber optic sensing technology and vision sensing technology is discussed. This paper demonstrates the feasibility and application potential of this integration by citing numerous examples. The conclusions show that this new integrated sensing technology can effectively utilize the advantages of both fields.

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Section: Quasi-distributed Fiber Optic Sensorsmentioning

confidence: 99%

Fiber Optic Sensing Technology and Vision Sensing Technology for Structural Health Monitoring

Wang

Guo

Han

et al. 2023

Sensors

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“…The long period of LPFG makes its resonance wavelength itude extremely sensitive to ambient temperature, strain, bending, and torsion. More is a transmission type fiber grating with no backscatter and high measurement accu fore, it plays an increasingly essential role in optical fiber sensing [108][109][110][111][112]. he LPFG couples the fundamental mode energy of the core to the cladding mode transm same direction.…”

Section: Ong-period Fiber Grating (Lpfg) Sensormentioning

confidence: 99%

“…Moreover, LPFG is a transmission type fiber grating with no backscatter and high measurement accuracy. Therefore, it plays an increasingly essential role in optical fiber sensing [ 108 , 109 , 110 , 111 , 112 ].…”

Section: Classification and Principles Of Fiber-optic Sensor (Fos)mentioning

confidence: 99%

Recent Progress of Fiber-Optic Sensors for the Structural Health Monitoring of Civil Infrastructure

Liu

et al. 2020

Sensors

117

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In recent years, with the development of materials science and architectural art, ensuring the safety of modern buildings is the top priority while they are developing toward higher, lighter, and more unique trends. Structural health monitoring (SHM) is currently an extremely effective and vital safeguard measure. Because of the fiber-optic sensor’s (FOS) inherent distinctive advantages (such as small size, lightweight, immunity to electromagnetic interference (EMI) and corrosion, and embedding capability), a significant number of innovative sensing systems have been exploited in the civil engineering for SHM used in projects (including buildings, bridges, tunnels, etc.). The purpose of this review article is devoted to presenting a summary of the basic principles of various fiber-optic sensors, classification and principles of FOS, typical and functional fiber-optic sensors (FOSs), and the practical application status of the FOS technology in SHM of civil infrastructure.

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“…Optical fiber sensors are effective devices due to their ability to respond a wide range of parameters like temperature, strain, refractive index, magnetic field, bending and so forth (Roriz et al 2014;Enriquez et al 2012;Hromadka et al 2017;Chu et al 2014;Rego 2016;Delgado and Santos 2017;Bhatia 1999;Falate et al 2007). They enable important opportunities compared to conventional electrical sensors such as lightweight, small size, inexpensive, operating in harsh environments, insusceptibility to electromagnetic interference, remote sensing and simultaneous measurement of multi parameters.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous measurement of strain and temperature by inscribing a paired LPGs on a pre-tapered fiber

Bilsel

Navruz

2021

Opt Quant Electron

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We designed a new all-fiber sensor composed of a paired LPGs written consecutively along a standard single-mode fiber by electric arc technique to measure strain and temperature simultaneously. Owing to the dual-LPG structure, transmission spectrum includes two specific resonance wavelengths which exhibit distinct responses to external disturbances, thus allowing to discriminate strain and temperature. Unlike the conventional LPG fabrication techniques, LPGs are written on a pre-tapered fiber to enhance the multi-channel selectivity of the sensor. Resonant wavelengths shift to shorter wavelengths due to increase in strain, however increasing temperature causes a shift to longer wavelengths in transmission spectrum. The experimental results show that the proposed sensor can achieve sensitivity of 12.1 pm/µε and 17.5 pm/°C for strain and temperature, respectively. Proposed sensor exhibits the advantages of simple fabrication, low cost, no splicing joints and useful for applications requiring to monitor more than one parameter due to dual attenuation bandwidth characteristics in its transmission spectrum.

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Multi-measurement scheme for a fiber-optic sensor based on a single long-period grating

Cited by 15 publications

References 14 publications

Fiber Optic Sensing Technology and Vision Sensing Technology for Structural Health Monitoring

Fiber Optic Sensing Technology and Vision Sensing Technology for Structural Health Monitoring

Recent Progress of Fiber-Optic Sensors for the Structural Health Monitoring of Civil Infrastructure

Simultaneous measurement of strain and temperature by inscribing a paired LPGs on a pre-tapered fiber

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