| GUO Junqi,ZHOU Yanfang,ZHENG Wenyue,XU Qianwen,LIU Yu,LIRenpu.Research on a fiber sensing system for metal ion detection based on SPF-PCF-SPF structure and coated LPFG[J].Optoelectronics Letters,2024,(4):211-215 |
| Research on a fiber sensing system for metal ion detection based on SPF-PCF-SPF structure and coated LPFG |
| Author Name | Affiliation | | GUO Junqi | Chongqing Key Laboratory of Autonomous Navigation and Microsystem, Chongqing University of Post and Telecommunications, Chongqing 400065, China
Chongqing Engineering Research Center of Intelligent Sensing Technology and Microsystem, Chongqing University of Posts and Telecommunications, Chongqing 400065, China | | ZHOU Yanfang | Chongqing Key Laboratory of Autonomous Navigation and Microsystem, Chongqing University of Post and Telecommunications, Chongqing 400065, China
Chongqing Engineering Research Center of Intelligent Sensing Technology and Microsystem, Chongqing University of Posts and Telecommunications, Chongqing 400065, China | | ZHENG Wenyue | Chongqing Key Laboratory of Autonomous Navigation and Microsystem, Chongqing University of Post and Telecommunications, Chongqing 400065, China
Chongqing Engineering Research Center of Intelligent Sensing Technology and Microsystem, Chongqing University of Posts and Telecommunications, Chongqing 400065, China | | XU Qianwen | Chongqing Key Laboratory of Autonomous Navigation and Microsystem, Chongqing University of Post and Telecommunications, Chongqing 400065, China
Chongqing Engineering Research Center of Intelligent Sensing Technology and Microsystem, Chongqing University of Posts and Telecommunications, Chongqing 400065, China | | LIU Yu | Chongqing Key Laboratory of Autonomous Navigation and Microsystem, Chongqing University of Post and Telecommunications, Chongqing 400065, China
Chongqing Engineering Research Center of Intelligent Sensing Technology and Microsystem, Chongqing University of Posts and Telecommunications, Chongqing 400065, China | | LIRenpu | Chongqing Key Laboratory of Autonomous Navigation and Microsystem, Chongqing University of Post and Telecommunications, Chongqing 400065, China
Chongqing Engineering Research Center of Intelligent Sensing Technology and Microsystem, Chongqing University of Posts and Telecommunications, Chongqing 400065, China |
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| Abstract: |
| In order to provide a method for accurately detecting the concentration and types of heavy metal ions in water, a fluid ion detection system is designed. It consists of a side-polished fiber-assisted fluid structure and a long-period fiber grating (LPFG) coated with a metal chelating agent membrane. In this study, both theoretical and experimental investigations are conducted to examine the sensing characteristics of the system towards copper ion and iron ion solutions. The results demonstrate that under the premise of ensuring solution flow, the system can achieve specific identification of different types of heavy metal ions. Furthermore, it exhibits concentration sensing sensitivities of 9.23×104 mL.nm/mol and 7.13×104 mL.nm/mol for copper sulfate (CuSO4) and ferric chloride (FeCl3) solutions, respectively. Therefore, this sensing system offers the potential for real-time detection of metal ions. |
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