High-Sensitivity Temperature Sensor Based on Fiber Fabry-Pérot Interferometer with UV Glue-Filled Hollow Capillary Fiber
Abstract
:1. Introduction
2. Sensor Configuration and Principle
3. Sensor Fabrication
4. Results and Discussion
4.1. Temperature Performance
4.2. Pressure Performance
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Parameter | Explanation |
---|---|
n0 | RI of air |
ns | RI of SMF core |
n | RI of the UV glue |
R1 | reflectivity of reflected surface M1 |
R2 | reflectivity of reflected surface M2 |
L | FPI cavity length |
α | transmission loss at the M1 |
λ | wavelength of incident light |
Φ | phase difference in FP cavity |
λm | wavelength of m′th-order interference dip of FPI |
E0 | input electric field |
Er | total electric field reflected from the FPI sensor |
Ir | total reflected light intensity |
T | temperature |
ST | temperature sensitivity of the proposed FPI |
αTEC | the TEC of UV glue |
σTOC | the TOC of UV glue |
m, j | positive integer |
Sensor Structure | Sensitivity | FPI Cavity Length or Structure Size | Range | Fabrication | Cost | Ref |
---|---|---|---|---|---|---|
PDMS-filled air-microbubble | 2.7035 nm/°C | the air-microbubble length of 26.5 μm | 51.2–70.5 °C | Easy | Low | [17] |
SU-8 and PDMS polymer-capped | 0.6897 nm/°C | the SU-8 film thickness of 18.7 μm the PDMS film thickness of 7.7 μm | 20–75 °C | Easy | High | [18] |
UV glue-capped with FBG | 0.223 nm/°C | the UV glue cap thickness of 48 μm | 30–110 °C | Complicated | High | [21] |
UV glue/Air cavity | 67.35 nm/°C | the sensing air cavity length of 77.59 μm the reference air cavity length of 81.52 μm | 20–24 °C | Complicated | Low | [22] |
UV glue and Capillary | 0.963 nm/°C | the UV glue cavity length of 90 μm | 42–50 °C | Easy | Low | [23] |
UV glue and Air Cavities | −1.7 nm/°C | the air cavity length of 20 μm the UV glue cavity length of 70 μm | 20–75 °C | Easy | Low | [24] |
UV glue-filled HCF | 1.174 nm/°C | the UV glue cavity length of 118.85 μm | 30–60 °C | Easy | Low | Our work |
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Zheng, Y.; Chen, Y.; Zhang, Q.; Tang, Q.; Zhu, Y.; Yu, Y.; Du, C.; Ruan, S. High-Sensitivity Temperature Sensor Based on Fiber Fabry-Pérot Interferometer with UV Glue-Filled Hollow Capillary Fiber. Sensors 2023, 23, 7687. https://doi.org/10.3390/s23187687
Zheng Y, Chen Y, Zhang Q, Tang Q, Zhu Y, Yu Y, Du C, Ruan S. High-Sensitivity Temperature Sensor Based on Fiber Fabry-Pérot Interferometer with UV Glue-Filled Hollow Capillary Fiber. Sensors. 2023; 23(18):7687. https://doi.org/10.3390/s23187687
Chicago/Turabian StyleZheng, Yiwen, Yongzhang Chen, Qiufang Zhang, Qianhao Tang, Yixin Zhu, Yongqin Yu, Chenlin Du, and Shuangchen Ruan. 2023. "High-Sensitivity Temperature Sensor Based on Fiber Fabry-Pérot Interferometer with UV Glue-Filled Hollow Capillary Fiber" Sensors 23, no. 18: 7687. https://doi.org/10.3390/s23187687