The Strain Transfer Mechanism of Fiber Bragg Grating Sensor for Extra Large Strain Monitoring
This research focuses on a desensitization method to develop a wide-range FBG sensor for extra-large strain monitoring, which is an essential requirement in large scale infrastructures or for some special occasions. Under appropriate hypotheses, the strain transfer distribution of wide-range FBG sen...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-04-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/19/8/1851 |
| _version_ | 1811303603468500992 |
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| author | Li Sun Chuang Li Chunwei Zhang Tianqi Liang Zihao Zhao |
| author_facet | Li Sun Chuang Li Chunwei Zhang Tianqi Liang Zihao Zhao |
| author_sort | Li Sun |
| collection | DOAJ |
| description | This research focuses on a desensitization method to develop a wide-range FBG sensor for extra-large strain monitoring, which is an essential requirement in large scale infrastructures or for some special occasions. Under appropriate hypotheses, the strain transfer distribution of wide-range FBG sensor based on the shear-lag theory is conducted to improve the accuracy of extra-large strain measurements. It is also discussed how the elastic modulus of adhesive layer affects the strain transfer rate. Two prototypes in different monitoring ranges are designed and fabricated by two layers of steel pipe encapsulation. The presented theoretical model is verified by experimental results. Moreover, it is demonstrated that experimentation in regards to the calibration of the wide-range FBG sensor, improved the amplification coefficient up to 2.08 times and 3.88 times, respectively. The static errors are both calculated and analyzed in this experiment. The wide-range FBG strain sensor shows favourable linearity and stability, which is an excellent property of sensors for extra-large strain monitoring. |
| first_indexed | 2024-04-13T07:49:53Z |
| format | Article |
| id | doaj.art-1d5af7edc4d1474faa28c1c787883483 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-13T07:49:53Z |
| publishDate | 2019-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-1d5af7edc4d1474faa28c1c7878834832022-12-22T02:55:33ZengMDPI AGSensors1424-82202019-04-01198185110.3390/s19081851s19081851The Strain Transfer Mechanism of Fiber Bragg Grating Sensor for Extra Large Strain MonitoringLi Sun0Chuang Li1Chunwei Zhang2Tianqi Liang3Zihao Zhao4School of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, ChinaSchool of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, ChinaSchool of Civil Engineering, Qingdao University of Technology, Qingdao 266033, ChinaSchool of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, ChinaSchool of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, ChinaThis research focuses on a desensitization method to develop a wide-range FBG sensor for extra-large strain monitoring, which is an essential requirement in large scale infrastructures or for some special occasions. Under appropriate hypotheses, the strain transfer distribution of wide-range FBG sensor based on the shear-lag theory is conducted to improve the accuracy of extra-large strain measurements. It is also discussed how the elastic modulus of adhesive layer affects the strain transfer rate. Two prototypes in different monitoring ranges are designed and fabricated by two layers of steel pipe encapsulation. The presented theoretical model is verified by experimental results. Moreover, it is demonstrated that experimentation in regards to the calibration of the wide-range FBG sensor, improved the amplification coefficient up to 2.08 times and 3.88 times, respectively. The static errors are both calculated and analyzed in this experiment. The wide-range FBG strain sensor shows favourable linearity and stability, which is an excellent property of sensors for extra-large strain monitoring.https://www.mdpi.com/1424-8220/19/8/1851wide-range FBG sensorextra-large strain monitoringstrain transferlinearitystability |
| spellingShingle | Li Sun Chuang Li Chunwei Zhang Tianqi Liang Zihao Zhao The Strain Transfer Mechanism of Fiber Bragg Grating Sensor for Extra Large Strain Monitoring Sensors wide-range FBG sensor extra-large strain monitoring strain transfer linearity stability |
| title | The Strain Transfer Mechanism of Fiber Bragg Grating Sensor for Extra Large Strain Monitoring |
| title_full | The Strain Transfer Mechanism of Fiber Bragg Grating Sensor for Extra Large Strain Monitoring |
| title_fullStr | The Strain Transfer Mechanism of Fiber Bragg Grating Sensor for Extra Large Strain Monitoring |
| title_full_unstemmed | The Strain Transfer Mechanism of Fiber Bragg Grating Sensor for Extra Large Strain Monitoring |
| title_short | The Strain Transfer Mechanism of Fiber Bragg Grating Sensor for Extra Large Strain Monitoring |
| title_sort | strain transfer mechanism of fiber bragg grating sensor for extra large strain monitoring |
| topic | wide-range FBG sensor extra-large strain monitoring strain transfer linearity stability |
| url | https://www.mdpi.com/1424-8220/19/8/1851 |
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