Automatic temperature monitoring technology based on fiber grating sensor

Xinxiang Shao; Heng Zhu; Yutong Wang; Hong Jiang

doi:10.1117/12.2667908

27 February 2023 Automatic temperature monitoring technology based on fiber grating sensor

Xinxiang Shao, Heng Zhu, Yutong Wang, Hong Jiang

Proceedings Volume 12585, International Conference on Precision Instruments and Optical Engineering (PIOE 2022); 125850H (2023) https://doi.org/10.1117/12.2667908
Event: International Conference on Precision Instruments and Optical Engineering (PIOE 2022), 2022, Guangzhou, China

Abstract

At present, temperature sensors are relatively mature, and commercial sensors are mainly thermistors and thermocouples, which have the advantages of low cost and large temperature range. However, it is difficult to meet the requirements of some special occasions, such as strong electromagnetic interference, strong corrosiveness and other environments, and high-precision temperature measurement cannot be performed. Fiber Bragg grating is a kind of fiber optic sensor, which has the advantages of anti-electromagnetic interference resistance, corrosion resistance and high sensitivity. The fiber Bragg grating obtains sensing information by modulating the Bragg wavelength of the fiber through the change of the external temperature parameter, and can automatically monitor the temperature change of the object to be measured. In this paper, the temperature sensing test experiment of fiber Bragg grating is carried out. The results show that the center wavelength of the grating has a good linear response to the temperature of the object to be measured, and the temperature error is within ±0.5℃. temperature sensing.

Citation Download Citation

Xinxiang Shao, Heng Zhu, Yutong Wang, and Hong Jiang "Automatic temperature monitoring technology based on fiber grating sensor", Proc. SPIE 12585, International Conference on Precision Instruments and Optical Engineering (PIOE 2022), 125850H (27 February 2023); https://doi.org/10.1117/12.2667908

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