Recent Advances and Tendency in Fiber Bragg Grating-Based Vibration Sensor: A Review

Li, Tianliang; Guo, Jinxiu; Tan, Yuegang; Zhou, Zude

doi:10.1109/jsen.2020.3000257

Cited by 140 publications

(38 citation statements)

References 96 publications

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“…Thus, it can be useful to monitor events like seism, ground motions, or small movements of critical infrastructures or machines. For such applications, our vibration sensor is substantially simpler than several FBG-accelerometers reported in the literature, see for example 2 , which monitor shifts of the Bragg wavelength. However, for practical applications, our coupled-core fiber Bragg gratings must be properly packaged as bare optical fibers can be easily broken when they are bent.…”

Section: Resultsmentioning

confidence: 99%

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Coupled-core fiber Bragg gratings for low-cost sensing

Flores-Bravo

Madrigal

Zubía

et al. 2022

Sci Rep

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Sensors based on Bragg gratings inscribed in conventional single mode fibers are expensive due to the need of a sophisticated, but low-speed, interrogation system. As an alternative to overcome this issue, in this work, it is proposed and demonstrated the use of coupled-core optical fiber Bragg gratings. It was found that the relative reflectivity from such gratings changed when the coupled-core fiber was subjected to point or periodic bending. This feature makes the interrogation of such gratings simple, fast, and cost-effective. The reflectivity changes of the gratings are attributed to the properties of the supermodes supported by the coupled-core fiber. As potential applications of the referred gratings, intensity-modulated vector bending and vibration sensing are demonstrated. We believe that the results reported here can pave the way to the development of many inexpensive sensors. Besides, coupled-core fiber Bragg gratings may expand the use of grating technology in other areas.

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Section: Resultsmentioning

confidence: 99%

“…Intensity-modulated FBG sensors are good candidates for monitoring dynamic events like impacts or vibrations 2 , 17 , as well as other parameters, as for example, bending or curvature 25 – 28 . Although in the latter case, it is important to discriminate the direction of the bending or curvature.…”

Section: Introductionmentioning

confidence: 99%

Coupled-core fiber Bragg gratings for low-cost sensing

Flores-Bravo

Madrigal

Zubía

et al. 2022

Sci Rep

View full text Add to dashboard Cite

show abstract

“…The measurement range can reach 30–200 Hz and the sensitivity is 54 pm/g. Li et al [ 24 ] summarized the research and development progress of fiber Bragg grating acceleration sensors and gave the performance index of single-dimensional, two-dimensional, and three-dimensional accelerometers.…”

Section: Introductionmentioning

confidence: 99%

New Fiber Bragg Grating Three-Dimensional Accelerometer Based on Composite Flexure Hinges

Wang

Liang

Zhou

et al. 2021

Sensors

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Multi-dimensional acceleration sensors are used in important applications in the aerospace, weapon equipment, and nuclear fields and have strict requirements in terms of performance, volume, and mass. Fiber Bragg grating acceleration sensors use optical wavelength signals as a medium for information transmission to effectively eliminate the influence of electromagnetic interference between multi-dimensional sensors. In this study, we designed a composite flexure hinge three-dimensional acceleration sensor. To this end, we investigated the coupling mechanism between a new integrated elastomer structure and fiber grating to determine the influence of structural parameters on the static and dynamic characteristics, volume, and mass of the sensor. By optimizing the strain distribution, amplitude, and frequency and coupling characteristics between dynamic dimensions, a design theory and a method for integrating the three-dimensional acceleration sensor were developed. The size of the optimized accelerometer is only 25 mm × 25 mm × 30 mm. Performance testing revealed that, along the three spatial dimensions, the sensor had sensitivities of 51.9, 39.5, and 20.3 pm/g, respectively, resonance frequencies of 800, 1125, and 1750 Hz, respectively, and a measurable frequency range of 0–250 Hz.

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“…In recent years, low-frequency FBG acceleration sensors have been extensively and intensively studied at home and abroad 8 , 9 . Dingyi Feng et al 10 proposed a dual-cantilever beam compact FBG acceleration sensor, where two identical L-shaped rigid cantilever beams are connected back-to-back and fixed as mass blocks at the free end of the rectangular cantilever beam.…”

Section: Introductionmentioning

confidence: 99%

A multi-cantilever beam low-frequency FBG acceleration sensor

Sun

Qiu

et al. 2021

Sci Rep

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The acquisition of 2–50 Hz low-frequency vibration signals is of great significance for the monitoring researches on engineering seismology, bridges & dams, oil & gas exploration, etc. A multi-cantilever beam low-frequency FBG acceleration sensor is proposed against the low sensitivity that predominates in the low-frequency vibration measurement by FBG acceleration sensors. Structural parameters of the sensor is subjected to simulation analysis and optimization design using the ANSYS software; the real sensor is developed based on the simulation results in the following manner: Three rectangular of the cantilever beams are evenly arranged around the mass block at 120°to improve the sensitivity and alleviate the transverse crosstalk of sensor; in the end, a performance test is performed on the sensor. According to the research findings, the sensor, whose natural frequency is approximately 64 Hz, is applicable for monitoring the low-frequency vibration signals within the range 16–54 Hz. The sensor sensitivity is approximately $$87.955\,{\text{pm/m}}\;{\text{s}}^{ - 2}$$ 87.955 pm/m s - 2 , the linearity being greater than 99%, the transverse interference immunity being lower than 2.58%, and the dynamic range being up to 86 dB. The findings offer a reference for developing sensor of the same type and further improving the sensitivity of fiber optic acceleration sensor.

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Recent Advances and Tendency in Fiber Bragg Grating-Based Vibration Sensor: A Review

Cited by 140 publications

References 96 publications

Coupled-core fiber Bragg gratings for low-cost sensing

Coupled-core fiber Bragg gratings for low-cost sensing

New Fiber Bragg Grating Three-Dimensional Accelerometer Based on Composite Flexure Hinges

A multi-cantilever beam low-frequency FBG acceleration sensor

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