High-sensitivity optical fiber flow sensor based on wall shear stress measurement

Ying-ying Wang; Qing-chao Zhao; Fa-xiang Zhang

doi:10.1117/12.2626088

27 March 2022 High-sensitivity optical fiber flow sensor based on wall shear stress measurement

Ying-ying Wang, Qing-chao Zhao, Fa-xiang Zhang

Proceedings Volume 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications; 12169AQ (2022) https://doi.org/10.1117/12.2626088
Event: Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 2021, Kunming, China

Abstract

In this paper, a high sensitivity optic fiber flow sensor with a pair of FBG encapsulated by the elastic diagram is presented. Two FBGs were used to measure the strain and ambient temperature, and for the temperature compensation meanwhile. High sensitivity elastic diaphragms of various materials can be produced by 3D printing. The sensitivity of this kind of stainless sensor can reach 18.59pm/με. The sensor is suitable for the measurement of viscous liquids such as oil and is expected to be used in engineering monitoring in the future.

Citation Download Citation

Ying-ying Wang, Qing-chao Zhao, and Fa-xiang Zhang "High-sensitivity optical fiber flow sensor based on wall shear stress measurement", Proc. SPIE 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 12169AQ (27 March 2022); https://doi.org/10.1117/12.2626088

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