An FBG-Based 2-D Vibration Sensor With Adjustable Sensitivity

Wang, Jingjing; Wei, Li; Li, Ruiya; Liu, Qin; Liang, Yu; Li, Tianliang; Tan, Yuegang

doi:10.1109/jsen.2017.2715066

Cited by 24 publications

(13 citation statements)

References 16 publications

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“…Therefore, the vibrations in different directions could be sensed by the difference between the wavelength drifts of the grating pairs, which eliminated the same wavelength drifts caused by temperature change and cross-axis vibration to realize the two-dimensional acceleration measurement. In 2017, Wang et al (2017) adopted a quality-ring position adjustable structure and designed a sensitivity adjustable two-dimensional acceleration sensor and the structure is shown in Figure 21(b). They suspended four FBGs pairwise and fixed them between the fixed plate and the matrix and two-dimensional acceleration measurement was realized by the difference principle.…”

Section: Fiber Bragg Grating Based Multi-dimensional Acceleration Sensormentioning

confidence: 99%

Fiber Bragg grating based acceleration sensors: a review

Guo

Chen

et al. 2021

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Purpose The purpose of this study is to present the state of the art for fiber Bragg grating (FBG) acceleration sensing technologies from two aspects: the principle of the measurement dimension and the principle of the sensing configuration. Some commercial sensors have also been introduced and future work in this field has also been discussed. This paper could provide an important reference for the research community. Design/methodology/approach This review is to present the state of the art for FBG acceleration sensing technologies from two aspects: the principle of the measurement dimension (one-dimension and multi-dimension) and the principle of the sensing configuration (beam type, radial vibration type, axial vibration type and other composite structures). Findings The current research on developing FBG acceleration sensors is mainly focused on the sensing method, the construction and design of the elastic structure and the design of a new information detection method. This paper hypothesizes that in the future, the following research trends will be strengthened: common single-mode fiber grating of the low cost and high utilization rate; high sensitivity and strength special fiber grating; multi-core fiber grating for measuring single-parameter multi-dimensional information or multi-parameter information; demodulating equipment of low cost, small volume and high sampling frequency. Originality/value The principle of the measurement dimension and principle of the sensing configuration for FBG acceleration sensors have been introduced, which could provide an important reference for the research community.

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Section: Fiber Bragg Grating Based Multi-dimensional Acceleration Sensormentioning

confidence: 99%

Fiber Bragg grating based acceleration sensors: a review

Guo

Chen

et al. 2021

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“…When multi-dimensional vibrations occur, the two mass blocks vibrate separately to produce acceleration measurements in two dimensions. Wan et al [ 12 ] designed a two-dimensional FBG accelerometer based on a design featuring a screw and two mass rings; the positions of the mass rings on the screw can be adjusted, allowing for sensitivities in the x- and y-directions of 16.1–152.3 and 16.4–150.7 pm/g, respectively, in the 40–100 Hz frequency range. Wang et al [ 13 ] developed a bidirectional Bragg grating acceleration sensor design with a circular flexure hinge.…”

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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“…For several decades, fiber optic sensors have been gaining attention, due to their small size, immunity to electromagnetic interference, light weight, ease of installation, and corrosion resistance [4]. Various fiber optic-based vibration sensors, including the fiber Bragg grating (FBG) [5], the Mach-Zehnder interferometer (MZI) [6], and the Fabry-Perot interferometer (FPI) [7] have been widely investigated. In 2013 M. Han et al [8,9] demonstrated a vibration sensor based on a fiber ring laser with an FBG and a tunable optical band-pass filter.…”

Section: Introductionmentioning

confidence: 99%

Measurement of CO₂ and Ultrasonic Vibration Based on Tunable Fiber Ring Laser

Lalam

Lü

et al. 2020

IEEE Access

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In this paper, we propose a method to simultaneously measure carbon dioxide (CO2) concentrations and ultrasonic vibration using fiber sensors with a tunable fiber ring laser based on a loop design. The in-line interferometric vibration sensor consists of a single-mode-multimode-single-mode fiber structure and detects continuous dynamic vibrations through intensity demodulation. The evanescent wave absorption based CO2 sensor is composed of a no-core fiber coated with silica derived from tetraethylorthosilicate. The fiber ring laser output is tuned to the CO2 absorption wavelength of 1574.6 nm, which also best matches the quadrature bias point of the vibration sensor. The vibration frequency signals from 10 Hz to 50 kHz, and fast detection of CO2 concentrations from 10% to 100% are experimentally demonstrated. The proposed hybrid sensor system is a promising method for monitoring the gas pipelines operating state, gas turbines, nuclear power plants, and automotive engines, where both vibration and CO2 concentration measurements are essential. INDEX TERMS Vibration sensing; carbon dioxide sensing; fiber optic sensors, tunable fiber ring laser.

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An FBG-Based 2-D Vibration Sensor With Adjustable Sensitivity

Cited by 24 publications

References 16 publications

Fiber Bragg grating based acceleration sensors: a review

Fiber Bragg grating based acceleration sensors: a review

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

Measurement of CO₂ and Ultrasonic Vibration Based on Tunable Fiber Ring Laser

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An FBG-Based 2-D Vibration Sensor With Adjustable Sensitivity

Cited by 24 publications

References 16 publications

Fiber Bragg grating based acceleration sensors: a review

Fiber Bragg grating based acceleration sensors: a review

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

Measurement of CO2 and Ultrasonic Vibration Based on Tunable Fiber Ring Laser

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Product

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Measurement of CO₂ and Ultrasonic Vibration Based on Tunable Fiber Ring Laser