Mr. Xiaorui Liang Profile

Xiaorui Liang

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Proceedings Article | 9 January 2023 Paper

Thermal pipeline safety monitoring based on fiber Bragg grating sensor

Zhanwu Xie, Haitao Yan, Pengfei Li, Xiaorui Liang, Hongtao Zhang

Proceedings Volume 12507, 125070B (2023) https://doi.org/10.1117/12.2653341

KEYWORDS: Sensors, Fiber Bragg gratings, Safety, Optical fibers, Single mode fibers, Thermal optics

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We verify the relationship between strain response wavelength of strain sensor and force magnitude and force point in practical engineering measurement. Six strain sensors with wavelength intervals of 2 nm were cascaded in a single channel and fixed on the surface of a thermal pipeline with an inner diameter of 50 cm and an outer diameter of 58 cm covered with thermal insulation material. The spacing of the fixed points is 1 m, and the package angle is 30° , 60°, 90°, 330°, 300° , 270° respectively. By changing the position of the external force point and the size of the force, through the theoretical analysis of the mechanical model, good results are obtained. The amplitude of the wavelength response can feedback the magnitude and position of the corresponding force.

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