A fiber optic pressure sensor based on white-light extrinsic Fabry-Perot interferometer and fiber Bragg grating for mixed environment

10 August 2015 A fiber optic pressure sensor based on white-light extrinsic Fabry-Perot interferometer and fiber Bragg grating for mixed environment

Le Yu, Yong Pan, Chengjun Hu, Xiaoguang Liu, Shengnan Duan, Min Zhang

Author Affiliations +

Proceedings Volume 9620, 2015 International Conference on Optical Instruments and Technology: Optical Sensors and Applications; 96200X (2015) https://doi.org/10.1117/12.2193056
Event: International Conference on Optical Instruments and Technology 2015, 2015, Beijing, China

Abstract

A fiber-optic extrinsic Fabry-Perot interferometer (EFPI) and fiber Bragg grating (FBG) based pressure sensor system is designed. Using polyimide coated optical fiber, this sensor works in harsh environment of high temperature and high pressure such as oilfield application with the advantages of high sensitivity, quick response and good reliability. Experiments show the sensor system has a pressure accuracy of 0.05MPa over a range of 0.1MPa to 60MPa at room temperature and in the mixed environment of high temperature and high pressure, the pressure accuracy gets to 0.07MPa under the experimental condition.

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Le Yu, Yong Pan, Chengjun Hu, Xiaoguang Liu, Shengnan Duan, and Min Zhang "A fiber optic pressure sensor based on white-light extrinsic Fabry-Perot interferometer and fiber Bragg grating for mixed environment", Proc. SPIE 9620, 2015 International Conference on Optical Instruments and Technology: Optical Sensors and Applications, 96200X (10 August 2015); https://doi.org/10.1117/12.2193056

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