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DOI: 10.17586/1023-5086-2025-92-06-45-54
A fiber sensing system based on the hybrid structure for metal ion detection and stress interference decoupling
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Jun Qi Guo, Wen Yue Zheng, Qianwen Xu, Yu Liu, Yan Fang Zhou, Ren Pu Li. A fiber sensing system based on the hybrid structure for metal ion detection and stress interference decoupling (Оптоволоконная сенсорная система с гибридной структурой для обнаружения ионов металлов и устранения помех от напряжений) [in English] // Opticheskii Zhurnal. 2025. V. 92. № 6. P. 45–54. http://doi.org/10.17586/1023-5086-2025-92-06-45-54
Jun Qi Guo, Wen Yue Zheng, Qianwen Xu, Yu Liu, Yan Fang Zhou, Ren Pu Li. A fiber sensing system based on the hybrid structure for metal ion detection and stress interference decoupling (Оптоволоконная сенсорная система с гибридной структурой для обнаружения ионов металлов и устранения помех от напряжений) [на англ. языке] // Оптический журнал. 2025. Т. 92. № 6. С. 45–54. http://doi.org/10.17586/1023-5086-2025-92-06-45-54
Subject of study. The design concept of fiber metal ion detectors and wind-blast pressure in water flow. Purpose of the work. Sensitization of fiber sensor in relation to concentration of metal ions in fluid and pressure due to water flow. Method. Through theoretical analyses and computer and physical simulations, the sensitivity of sensor consisting of metal ions concentration meter, transitive D-shaped fiber module and fluid flow pressure meter based on fiber grating is investigated. Main results. As a result of metal ions concentration measurement experiments it has been proved that the device reaches a response sensitivity of metal ion concentration in the order of 105 nm·ml/mol. In addition, the sensitivity of the metal ion concentration response is ensured to be of the order of 105 nm·ml/mol, and the device is experimentally investigated for sensing characteristics of axial strain and bending deformation. Practical significance. The design concept and calculation methods of metal ion concentration and fluid flow pressure stress sensor have been developed; the sensor can be used for ecological monitoring of natural water environments.
fiber optic sensor, fluid flow stress, metal ion detection, fluid sensing structure
Acknowledgements:the work was funded by the National Natural Science Foundation of China (61705027, 62005033, and 52175531), Chongqing Science and Technology Commission Basic Research Project (CSTC-2020jcyj-msxm0603), Chongqing Municipal Education Commission Science and Technology Research Program (KJQN202000609)
OCIS codes: 060.2370
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