Investigation of a spring-shaped fiber modulation based on bending loss for detecting linear displacement

Zheng, Yong; Zeng, Bin; Yu, Jie; Yanɡ, Chao; Li, Zheng

doi:10.1016/j.measurement.2022.110976

Cited by 7 publications

(2 citation statements)

References 16 publications

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“…Linear regression applied to the data yields equation (7), The output formula for the displacement sensor, derived by excluding external temperature variations, is depicted as equation (8),…”

Section: Assembly and Testing Of Displacement Sensormentioning

confidence: 99%

“…In recent years, there have been increasing research reports on the application of fiber optic sensing technology and fiber Bragg grating (FBG) sensors in slope safety monitoring [2][3][4][5][6][7][8][9][10][11]. Existing FBG displacement sensors can be categorized into those based on cantilever beams, fixed-end beams, * Author to whom any correspondence should be addressed.…”

Section: Introductionmentioning

confidence: 99%

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FBG displacement sensor with hyperbolic flexible hinge structure

Shi,

Wang,

Cai

et al. 2023

Meas. Sci. Technol.

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This paper proposes a design method for a fiber Bragg grating (FBG) displacement sensor with a hyperbolic flexible hinge structure. A compact FBG displacement sensor with strong micro displacement measurement capability was fabricated. The final assembly testing showed that the sensor achieved good linearity with a linearity of 0.53%F·S at a range of 50 mm. The sensitivity was measured as 24.45 pm mm−1, hysteresis error as 1.1%FS, and repeatability error as 0.659%. The testing results demonstrated that the fabricated FBG displacement sensor exhibited strong practicality and good stability, making it suitable for long-term displacement monitoring of slope safety.

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Section: Assembly and Testing Of Displacement Sensormentioning

confidence: 99%