Advantageous Strain Sensing Performances of FBG Strain Sensors Equipped with Planar UV-Curable Resin
The existing optical strain sensors based on fiber Bragg grating (FBG) have limitations, such as a complex structure, a limited strain range (±200 με) and poor linearity performance (R-squared value < 0.9920); these limitations affect their potential practical applications. Here, four FBG strain...
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MDPI AG
2023-03-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/23/5/2811 |
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| author | Xiaojin Li Min Zheng Dan Hou Qiao Wen |
| author_facet | Xiaojin Li Min Zheng Dan Hou Qiao Wen |
| author_sort | Xiaojin Li |
| collection | DOAJ |
| description | The existing optical strain sensors based on fiber Bragg grating (FBG) have limitations, such as a complex structure, a limited strain range (±200 με) and poor linearity performance (R-squared value < 0.9920); these limitations affect their potential practical applications. Here, four FBG strain sensors equipped with planar UV-curable resin are investigated. The proposed FBG strain sensors have a simple structure, a large strain range (±1800 με) and excellent linearity performance (R-squared value ≥ 0.9998); they further produce the following performances: (1) good optical properties, including an undistorted Bragg peak shape, narrow bandwidth (−3 dB bandwidth ≤ 0.65 nm) and a high side mode suppression ratio (SMSR, the absolute value of SMSR ≥ 15 dB); (2) good temperature sensing properties with high temperature sensitivities (≥47.7 pm/°C) and a good linearity performance (R-squared value ≥ 0.9990); and (3) excellent strain sensing properties with no hysteresis behavior (hysteresis error ≤ 0.058%) and excellent repeatability (repeatability error ≤ 0.045%). Based on their excellent properties, the proposed FBG strain sensors are expected to be applied as high-performance strain sensing devices. |
| first_indexed | 2024-03-11T07:09:49Z |
| format | Article |
| id | doaj.art-b93fa81d12a44d1497f3acc9b7b71fe7 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-11T07:09:49Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-b93fa81d12a44d1497f3acc9b7b71fe72023-11-17T08:40:02ZengMDPI AGSensors1424-82202023-03-01235281110.3390/s23052811Advantageous Strain Sensing Performances of FBG Strain Sensors Equipped with Planar UV-Curable ResinXiaojin Li0Min Zheng1Dan Hou2Qiao Wen3Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, ChinaOptical Fiber Sensing Engineering Technology R&D Center of Guangdong Province, T&S Communications Co., Ltd., Shenzhen 518118, ChinaOptical Fiber Sensing Engineering Technology R&D Center of Guangdong Province, T&S Communications Co., Ltd., Shenzhen 518118, ChinaKey Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, ChinaThe existing optical strain sensors based on fiber Bragg grating (FBG) have limitations, such as a complex structure, a limited strain range (±200 με) and poor linearity performance (R-squared value < 0.9920); these limitations affect their potential practical applications. Here, four FBG strain sensors equipped with planar UV-curable resin are investigated. The proposed FBG strain sensors have a simple structure, a large strain range (±1800 με) and excellent linearity performance (R-squared value ≥ 0.9998); they further produce the following performances: (1) good optical properties, including an undistorted Bragg peak shape, narrow bandwidth (−3 dB bandwidth ≤ 0.65 nm) and a high side mode suppression ratio (SMSR, the absolute value of SMSR ≥ 15 dB); (2) good temperature sensing properties with high temperature sensitivities (≥47.7 pm/°C) and a good linearity performance (R-squared value ≥ 0.9990); and (3) excellent strain sensing properties with no hysteresis behavior (hysteresis error ≤ 0.058%) and excellent repeatability (repeatability error ≤ 0.045%). Based on their excellent properties, the proposed FBG strain sensors are expected to be applied as high-performance strain sensing devices.https://www.mdpi.com/1424-8220/23/5/2811FBG strain sensorsplanar UV-curable resinexcellent strain sensing properties |
| spellingShingle | Xiaojin Li Min Zheng Dan Hou Qiao Wen Advantageous Strain Sensing Performances of FBG Strain Sensors Equipped with Planar UV-Curable Resin Sensors FBG strain sensors planar UV-curable resin excellent strain sensing properties |
| title | Advantageous Strain Sensing Performances of FBG Strain Sensors Equipped with Planar UV-Curable Resin |
| title_full | Advantageous Strain Sensing Performances of FBG Strain Sensors Equipped with Planar UV-Curable Resin |
| title_fullStr | Advantageous Strain Sensing Performances of FBG Strain Sensors Equipped with Planar UV-Curable Resin |
| title_full_unstemmed | Advantageous Strain Sensing Performances of FBG Strain Sensors Equipped with Planar UV-Curable Resin |
| title_short | Advantageous Strain Sensing Performances of FBG Strain Sensors Equipped with Planar UV-Curable Resin |
| title_sort | advantageous strain sensing performances of fbg strain sensors equipped with planar uv curable resin |
| topic | FBG strain sensors planar UV-curable resin excellent strain sensing properties |
| url | https://www.mdpi.com/1424-8220/23/5/2811 |
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