An Omni-Azimuth Angle Sensor for Tilt Measuring Based on FBG Array
An omni-azimuth angle sensor for tilt measuring based on fiber Bragg grating (FBG) array is proposed. It is designed based on the sensitivity of FBG to axial traction. The sensor consists of a mass block and a cube frame connected by an FBG array. The FBG array consists of four FBGs. When the sensor...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2021-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/9573312/ |
| _version_ | 1818344899261497344 |
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| author | Guangwei Fu Jiaqi Cao Jiatong Zhang Xinghu Fu Wa Jin Weihong Bi |
| author_facet | Guangwei Fu Jiaqi Cao Jiatong Zhang Xinghu Fu Wa Jin Weihong Bi |
| author_sort | Guangwei Fu |
| collection | DOAJ |
| description | An omni-azimuth angle sensor for tilt measuring based on fiber Bragg grating (FBG) array is proposed. It is designed based on the sensitivity of FBG to axial traction. The sensor consists of a mass block and a cube frame connected by an FBG array. The FBG array consists of four FBGs. When the sensor is tilted at different angles, the axial traction of each FBG will change due to the pull of the mass block. The tilt angle of the sensing unit can be obtained by calculating the magnitude and direction of the resultant traction of the four FBGs. The array design and measurement theory of the sensor are introduced, and the sensitivity of the sensor is discussed. Experimental results show that the FBG array can be used to measure the omni-azimuth angle. The angle sensitivity varies unevenly with the tilt angle and the range of variation is 0.08 nm/° to 0.4593 nm/°. Using the spectrometer with an accuracy of 0.01 nm, the angle resolution ranges from 0.125° to 0.0218°. The array effectively extends the measurement range of the tilt sensor, and reduces the number of FBGs as much as possible on the basis of achieving omni-azimuth angle measurement. |
| first_indexed | 2024-12-13T16:53:48Z |
| format | Article |
| id | doaj.art-2f73fb82769341439648648d740c381e |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-12-13T16:53:48Z |
| publishDate | 2021-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-2f73fb82769341439648648d740c381e2022-12-21T23:37:57ZengIEEEIEEE Photonics Journal1943-06552021-01-011361810.1109/JPHOT.2021.31198969573312An Omni-Azimuth Angle Sensor for Tilt Measuring Based on FBG ArrayGuangwei Fu0https://orcid.org/0000-0001-7567-0859Jiaqi Cao1Jiatong Zhang2Xinghu Fu3https://orcid.org/0000-0002-3234-0814Wa Jin4Weihong Bi5https://orcid.org/0000-0002-0002-4059The Key Laboratory for Special Fiber and Fiber Sensor of Hebei Province, School of Information Science and Engineering, Yanshan University, Qinhuangdao, ChinaThe Key Laboratory for Special Fiber and Fiber Sensor of Hebei Province, School of Information Science and Engineering, Yanshan University, Qinhuangdao, ChinaThe Key Laboratory for Special Fiber and Fiber Sensor of Hebei Province, School of Information Science and Engineering, Yanshan University, Qinhuangdao, ChinaThe Key Laboratory for Special Fiber and Fiber Sensor of Hebei Province, School of Information Science and Engineering, Yanshan University, Qinhuangdao, ChinaThe Key Laboratory for Special Fiber and Fiber Sensor of Hebei Province, School of Information Science and Engineering, Yanshan University, Qinhuangdao, ChinaThe Key Laboratory for Special Fiber and Fiber Sensor of Hebei Province, School of Information Science and Engineering, Yanshan University, Qinhuangdao, ChinaAn omni-azimuth angle sensor for tilt measuring based on fiber Bragg grating (FBG) array is proposed. It is designed based on the sensitivity of FBG to axial traction. The sensor consists of a mass block and a cube frame connected by an FBG array. The FBG array consists of four FBGs. When the sensor is tilted at different angles, the axial traction of each FBG will change due to the pull of the mass block. The tilt angle of the sensing unit can be obtained by calculating the magnitude and direction of the resultant traction of the four FBGs. The array design and measurement theory of the sensor are introduced, and the sensitivity of the sensor is discussed. Experimental results show that the FBG array can be used to measure the omni-azimuth angle. The angle sensitivity varies unevenly with the tilt angle and the range of variation is 0.08 nm/° to 0.4593 nm/°. Using the spectrometer with an accuracy of 0.01 nm, the angle resolution ranges from 0.125° to 0.0218°. The array effectively extends the measurement range of the tilt sensor, and reduces the number of FBGs as much as possible on the basis of achieving omni-azimuth angle measurement.https://ieeexplore.ieee.org/document/9573312/Fiber bragg grating (FBG)angle sensoromni-azimuthaxial traction |
| spellingShingle | Guangwei Fu Jiaqi Cao Jiatong Zhang Xinghu Fu Wa Jin Weihong Bi An Omni-Azimuth Angle Sensor for Tilt Measuring Based on FBG Array IEEE Photonics Journal Fiber bragg grating (FBG) angle sensor omni-azimuth axial traction |
| title | An Omni-Azimuth Angle Sensor for Tilt Measuring Based on FBG Array |
| title_full | An Omni-Azimuth Angle Sensor for Tilt Measuring Based on FBG Array |
| title_fullStr | An Omni-Azimuth Angle Sensor for Tilt Measuring Based on FBG Array |
| title_full_unstemmed | An Omni-Azimuth Angle Sensor for Tilt Measuring Based on FBG Array |
| title_short | An Omni-Azimuth Angle Sensor for Tilt Measuring Based on FBG Array |
| title_sort | omni azimuth angle sensor for tilt measuring based on fbg array |
| topic | Fiber bragg grating (FBG) angle sensor omni-azimuth axial traction |
| url | https://ieeexplore.ieee.org/document/9573312/ |
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