Radiation and temperature effect of fiber Bragg grating sensor under Co-60 irradiation

Ye, Huangfeng; Geng, Changran; Tang, Xiaobin; Tian, Feng; Wu, Renyao; Xu, Pinyuan

doi:10.1016/j.radmeas.2021.106546

Cited by 5 publications

(2 citation statements)

References 23 publications

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“…FBG has been widely used in optics fiber sensing field because of wavelength drift caused by the change of temperature and stress. At present, the FBG sensor has achieved good results in temperature [1], humidity [2], stress or strain [3], direction [4] and it's has been applied in engineering and gradually developed toward industrialization. Moreover, because of its clear physical mechanism, high stability and easy signal demodulation, the FBG sensor is also combined with the cantilever beam structure, so there are many researches and applications in the typical mechanical quantities, including acceleration [5], vibration [6], hydrophone sensor [7] and so on.…”

Section: Introductionmentioning

confidence: 99%

Thermal pipeline safety monitoring based on fiber Bragg grating sensor

Xie

Yan²,

Li³

et al. 2023

Advanced Optical Manufacturing Technologies and Applications 2022; And 2nd International Forum of Young Scientists on Advanced

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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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Section: Introductionmentioning

confidence: 99%

Thermal pipeline safety monitoring based on fiber Bragg grating sensor

Xie

Yan²,

Li³

et al. 2023

Advanced Optical Manufacturing Technologies and Applications 2022; And 2nd International Forum of Young Scientists on Advanced

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“…Another sensing technology providing quasi-distributed dosimetry is fiber Bragg gratings (FBGs). Exposure to gamma radiation causes the Bragg wavelength (BW) shift, which can be mapped versus the received dose [ 10 , 11 ]. However, the sensitivity of silica FBGs decreases with received dose, tending the BW to saturate.…”

Section: Introductionmentioning

confidence: 99%

Online Gamma Radiation Monitoring Using Few-Mode Polymer CYTOP Fiber Bragg Gratings

Chapalo

Gusarov

Ioannou

et al. 2022

Sensors

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We investigated the gamma radiation response of fiber Bragg gratings (FBGs) inscribed in a few-mode polymer optical fiber. The fiber had a graded-index CYTOP core of 20 µm and XYLEX overclad of 250 µm in diameter. Four FBGs were exposed to gamma radiation during four irradiation sessions at a 5.3 kGy/h dose rate. The FBGs showed a linear Bragg wavelength shift with the received dose with a mean sensitivity of −3.95 pm/kGy at 43 °C. The increased temperature provides a rise in the sensitivity: it reached −10.6 pm/kGy at 58 °C. After irradiation, the FBGs showed partial recovery, which increased with the received dose. Furthermore, the FBG’s reflection power decreased with the dose. This attenuation is mainly due to insertion losses caused by the radiation induced attenuation in the CYTOP fiber. Linear response to the received dose makes CYTOP FBGs attractive for gamma radiation dosimetry. However, temperature dependence of the sensitivity should be compensated in practical applications.

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Effect of irradiation on temperature performance of dispersion-compensation no-core cascade optical-fiber sensor coated with polydimethylsiloxane film

Wang

Jiang

et al. 2022

NUCL SCI TECH

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Radiation and temperature effect of fiber Bragg grating sensor under Co-60 irradiation

Cited by 5 publications

References 23 publications

Thermal pipeline safety monitoring based on fiber Bragg grating sensor

Thermal pipeline safety monitoring based on fiber Bragg grating sensor

Online Gamma Radiation Monitoring Using Few-Mode Polymer CYTOP Fiber Bragg Gratings

Effect of irradiation on temperature performance of dispersion-compensation no-core cascade optical-fiber sensor coated with polydimethylsiloxane film

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