Dual-parameter balloon-type fiber optic sensor based on MIL-101 moisture-sensitive material

Mingxing Liu; Kunshan Yang; Weizhun Dong; Fangfei Shi; Xiu Du; Xiangju Qin; Yu Zhong; Wentong Geng; Lingxin Kong

doi:10.1117/12.3022047

18 March 2024 Dual-parameter balloon-type fiber optic sensor based on MIL-101 moisture-sensitive material

Mingxing Liu, Kunshan Yang, Weizhun Dong, Fangfei Shi, Xiu Du, Xiangju Qin, Yu Zhong, Wentong Geng, Lingxin Kong

Proceedings Volume 13104, Advanced Fiber Laser Conference (AFL2023); 131041C (2024) https://doi.org/10.1117/12.3022047
Event: Advanced Fiber Laser Conference (AFL2023), 2023, Shenzhen, China

Abstract

MIL-101 is a humidity-sensitive metal-organic framework (MOF) material. In this paper, a balloon-type optical fiber sensor based on the metal-organic framework is proposed, which uses a hybrid structure of fiber Bragg grating (FBG) and balloon-type curved optical fiber, and the humidity-sensitive material (MIL-101) is coated near the geometric center of the balloon-type optical fiber to form a laminated film (LF) structure. When the material absorbs water molecules, its refractive index changes, thus realizing the humidity sensitivity and sensing the temperature using FBG. Based on the above sensing mechanism, the structure realizes the dual parameter detection of temperature and relative humidity. The experimental results show that the fiber optic sensor has a relative humidity sensitivity of 221.6 pm/%RH and a temperature sensitivity of -74.58 pm/°C. This composite structure fiber optic sensor combined with new materials provides good technical conditions for achieving the measurement of ambient temperature and relative humidity.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Mingxing Liu, Kunshan Yang, Weizhun Dong, Fangfei Shi, Xiu Du, Xiangju Qin, Yu Zhong, Wentong Geng, and Lingxin Kong "Dual-parameter balloon-type fiber optic sensor based on MIL-101 moisture-sensitive material", Proc. SPIE 13104, Advanced Fiber Laser Conference (AFL2023), 131041C (18 March 2024); https://doi.org/10.1117/12.3022047

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