Simultaneous Measurement of Temperature and Pressure Based on Fabry-Perot Interferometry for Marine Monitoring
The temperature and pressure of seawater are of great importance to investigate the environmental evolution for the research of ocean science. With this regard, we proposed and experimentally demonstrated a seawater temperature and pressure sensor realized by a polyimide (PI) tube-based Fabry-Perot...
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| Format: | Article |
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MDPI AG
2022-07-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/22/13/4979 |
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| author | Shengqi Zhang Yongchang Mei Titi Xia Zihan Cao Zhengyong Liu Zhaohui Li |
| author_facet | Shengqi Zhang Yongchang Mei Titi Xia Zihan Cao Zhengyong Liu Zhaohui Li |
| author_sort | Shengqi Zhang |
| collection | DOAJ |
| description | The temperature and pressure of seawater are of great importance to investigate the environmental evolution for the research of ocean science. With this regard, we proposed and experimentally demonstrated a seawater temperature and pressure sensor realized by a polyimide (PI) tube-based Fabry-Perot interferometer (FPI) together with a fiber Bragg grating (FBG). Benefiting from the higher thermo-optical coefficient and larger elasticity of polymer than the fused silica fiber, the sensitivity of the sensor is largely improved. The FBG is used to compensate the cross effect of the temperature. The measured temperature and pressure sensitivities of the sensor are 18.910 nm/°C and −35.605 nm/MPa, respectively. Furthermore, the temperature and pressure information measured by the sensor can be achieved simultaneously using the sensitivity matrix method. In addition, the proposed sensor has advantages of easy fabrication, compact size, as well as capability of multiplexing and long-distance measurement, making it competitive and promising during the marine monitoring. |
| first_indexed | 2024-03-09T03:54:12Z |
| format | Article |
| id | doaj.art-2f8c98d9b1b14304bf97b6a69f019c7e |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T03:54:12Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-2f8c98d9b1b14304bf97b6a69f019c7e2023-12-03T14:22:29ZengMDPI AGSensors1424-82202022-07-012213497910.3390/s22134979Simultaneous Measurement of Temperature and Pressure Based on Fabry-Perot Interferometry for Marine MonitoringShengqi Zhang0Yongchang Mei1Titi Xia2Zihan Cao3Zhengyong Liu4Zhaohui Li5Guangdong Provincial Key Laboratory of Optoelectronic Information Processing Chips and Systems, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou 510275, ChinaGuangdong Provincial Key Laboratory of Optoelectronic Information Processing Chips and Systems, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou 510275, ChinaGuangdong Provincial Key Laboratory of Optoelectronic Information Processing Chips and Systems, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou 510275, ChinaGuangdong Provincial Key Laboratory of Optoelectronic Information Processing Chips and Systems, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou 510275, ChinaGuangdong Provincial Key Laboratory of Optoelectronic Information Processing Chips and Systems, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou 510275, ChinaGuangdong Provincial Key Laboratory of Optoelectronic Information Processing Chips and Systems, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou 510275, ChinaThe temperature and pressure of seawater are of great importance to investigate the environmental evolution for the research of ocean science. With this regard, we proposed and experimentally demonstrated a seawater temperature and pressure sensor realized by a polyimide (PI) tube-based Fabry-Perot interferometer (FPI) together with a fiber Bragg grating (FBG). Benefiting from the higher thermo-optical coefficient and larger elasticity of polymer than the fused silica fiber, the sensitivity of the sensor is largely improved. The FBG is used to compensate the cross effect of the temperature. The measured temperature and pressure sensitivities of the sensor are 18.910 nm/°C and −35.605 nm/MPa, respectively. Furthermore, the temperature and pressure information measured by the sensor can be achieved simultaneously using the sensitivity matrix method. In addition, the proposed sensor has advantages of easy fabrication, compact size, as well as capability of multiplexing and long-distance measurement, making it competitive and promising during the marine monitoring.https://www.mdpi.com/1424-8220/22/13/4979fiber-optic sensorFabry-Perot interferometerFBGtemperature and pressure sensingmarine monitoring |
| spellingShingle | Shengqi Zhang Yongchang Mei Titi Xia Zihan Cao Zhengyong Liu Zhaohui Li Simultaneous Measurement of Temperature and Pressure Based on Fabry-Perot Interferometry for Marine Monitoring Sensors fiber-optic sensor Fabry-Perot interferometer FBG temperature and pressure sensing marine monitoring |
| title | Simultaneous Measurement of Temperature and Pressure Based on Fabry-Perot Interferometry for Marine Monitoring |
| title_full | Simultaneous Measurement of Temperature and Pressure Based on Fabry-Perot Interferometry for Marine Monitoring |
| title_fullStr | Simultaneous Measurement of Temperature and Pressure Based on Fabry-Perot Interferometry for Marine Monitoring |
| title_full_unstemmed | Simultaneous Measurement of Temperature and Pressure Based on Fabry-Perot Interferometry for Marine Monitoring |
| title_short | Simultaneous Measurement of Temperature and Pressure Based on Fabry-Perot Interferometry for Marine Monitoring |
| title_sort | simultaneous measurement of temperature and pressure based on fabry perot interferometry for marine monitoring |
| topic | fiber-optic sensor Fabry-Perot interferometer FBG temperature and pressure sensing marine monitoring |
| url | https://www.mdpi.com/1424-8220/22/13/4979 |
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