Paper
9 January 2023 Thermal pipeline safety monitoring based on fiber Bragg grating sensor
Author Affiliations +
Abstract
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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Zhanwu Xie, Haitao Yan, Pengfei Li, Xiaorui Liang, and Hongtao Zhang "Thermal pipeline safety monitoring based on fiber Bragg grating sensor", Proc. SPIE 12507, Advanced Optical Manufacturing Technologies and Applications 2022; and 2nd International Forum of Young Scientists on Advanced Optical Manufacturing (AOMTA and YSAOM 2022), 125070B (9 January 2023); https://doi.org/10.1117/12.2653341
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KEYWORDS
Sensors

Fiber Bragg gratings

Optical fibers

Safety

Single mode fibers

Thermal optics

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