Double Notched Long-Period Fiber Grating Characterization for CO2 Gas Sensing Applications †
In this study, we applied a double-sided inductively coupled plasma (ICP) process to nanostructure long-period fiber grating (LPFG) in order to fabricate a double-notched LPFG (DNLPFG) sensor with a double-sided surface corrugated periodic grating. Using the sol-gel method, we also added thymol blue...
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MDPI AG
2018-09-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/18/10/3206 |
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| author | Hsiang-Chang Hsu Tso-Sheng Hsieh Tzu-Hsuan Huang Liren Tsai Chia-Chin Chiang |
| author_facet | Hsiang-Chang Hsu Tso-Sheng Hsieh Tzu-Hsuan Huang Liren Tsai Chia-Chin Chiang |
| author_sort | Hsiang-Chang Hsu |
| collection | DOAJ |
| description | In this study, we applied a double-sided inductively coupled plasma (ICP) process to nanostructure long-period fiber grating (LPFG) in order to fabricate a double-notched LPFG (DNLPFG) sensor with a double-sided surface corrugated periodic grating. Using the sol-gel method, we also added thymol blue and ZnO to form a gas sensing layer, thus producing a DNLPFG CO2 gas sensor. The resulting sensor is the first double-sided etching sensor used to measure CO2. The experimental results showed that as the CO2 concentration increased, the transmission loss increased, and that the smaller the fiber diameter, the greater the sensitivity and the greater the change in transmission loss. When the diameter of the fiber was 32 μm (and the period was 570 μm) and the perfusion rate of CO2 gas was 15%, the maximum loss variation of up to 3.881 dB was achieved, while the sensitivity was 0.2146 dB/% and the linearity was 0.992. These results demonstrate that the DNLPG CO2 gas sensor is highly sensitive. |
| first_indexed | 2024-04-13T06:43:15Z |
| format | Article |
| id | doaj.art-cd36888b25314e318e8e74d124ca16ba |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-13T06:43:15Z |
| publishDate | 2018-09-01 |
| publisher | MDPI AG |
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| series | Sensors |
| spelling | doaj.art-cd36888b25314e318e8e74d124ca16ba2022-12-22T02:57:41ZengMDPI AGSensors1424-82202018-09-011810320610.3390/s18103206s18103206Double Notched Long-Period Fiber Grating Characterization for CO2 Gas Sensing Applications †Hsiang-Chang Hsu0Tso-Sheng Hsieh1Tzu-Hsuan Huang2Liren Tsai3Chia-Chin Chiang4Department of Mechanical Engineering, National Kaohsiung University of Sciences and Technology, NO.415 Jian-gong Road, Kaohsiung, Kaohsiung City 80778, TaiwanDepartment of Mechanical Engineering, National Kaohsiung University of Sciences and Technology, NO.415 Jian-gong Road, Kaohsiung, Kaohsiung City 80778, TaiwanDepartment of Mechanical Engineering, National Kaohsiung University of Sciences and Technology, NO.415 Jian-gong Road, Kaohsiung, Kaohsiung City 80778, TaiwanDepartment of Mechanical Engineering, National Kaohsiung University of Sciences and Technology, NO.415 Jian-gong Road, Kaohsiung, Kaohsiung City 80778, TaiwanDepartment of Mechanical Engineering, National Kaohsiung University of Sciences and Technology, NO.415 Jian-gong Road, Kaohsiung, Kaohsiung City 80778, TaiwanIn this study, we applied a double-sided inductively coupled plasma (ICP) process to nanostructure long-period fiber grating (LPFG) in order to fabricate a double-notched LPFG (DNLPFG) sensor with a double-sided surface corrugated periodic grating. Using the sol-gel method, we also added thymol blue and ZnO to form a gas sensing layer, thus producing a DNLPFG CO2 gas sensor. The resulting sensor is the first double-sided etching sensor used to measure CO2. The experimental results showed that as the CO2 concentration increased, the transmission loss increased, and that the smaller the fiber diameter, the greater the sensitivity and the greater the change in transmission loss. When the diameter of the fiber was 32 μm (and the period was 570 μm) and the perfusion rate of CO2 gas was 15%, the maximum loss variation of up to 3.881 dB was achieved, while the sensitivity was 0.2146 dB/% and the linearity was 0.992. These results demonstrate that the DNLPG CO2 gas sensor is highly sensitive.http://www.mdpi.com/1424-8220/18/10/3206sol-gelCO2gas sensor |
| spellingShingle | Hsiang-Chang Hsu Tso-Sheng Hsieh Tzu-Hsuan Huang Liren Tsai Chia-Chin Chiang Double Notched Long-Period Fiber Grating Characterization for CO2 Gas Sensing Applications † Sensors sol-gel CO2 gas sensor |
| title | Double Notched Long-Period Fiber Grating Characterization for CO2 Gas Sensing Applications † |
| title_full | Double Notched Long-Period Fiber Grating Characterization for CO2 Gas Sensing Applications † |
| title_fullStr | Double Notched Long-Period Fiber Grating Characterization for CO2 Gas Sensing Applications † |
| title_full_unstemmed | Double Notched Long-Period Fiber Grating Characterization for CO2 Gas Sensing Applications † |
| title_short | Double Notched Long-Period Fiber Grating Characterization for CO2 Gas Sensing Applications † |
| title_sort | double notched long period fiber grating characterization for co2 gas sensing applications † |
| topic | sol-gel CO2 gas sensor |
| url | http://www.mdpi.com/1424-8220/18/10/3206 |
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