A Medium-Frequency Fiber Bragg Grating Accelerometer Based on Flexible Hinges
Mediumfrequency fiber Bragg grating (FBG) acceleration sensors are used in important applications in mechanical, aerospace and weapon equipment, and have strict requirements in terms of resonance frequency and sensitivity. A novel medium-frequency accelerometer, based on fiber Bragg grating and flex...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-10-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/21/21/6968 |
| _version_ | 1827677855174098944 |
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| author | Zichuang Li Lei Liang Hui Wang Shu Dai Ke Jiang Zhiyuan Song |
| author_facet | Zichuang Li Lei Liang Hui Wang Shu Dai Ke Jiang Zhiyuan Song |
| author_sort | Zichuang Li |
| collection | DOAJ |
| description | Mediumfrequency fiber Bragg grating (FBG) acceleration sensors are used in important applications in mechanical, aerospace and weapon equipment, and have strict requirements in terms of resonance frequency and sensitivity. A novel medium-frequency accelerometer, based on fiber Bragg grating and flexible hinges, is proposed in this paper. The differential structure doubles the sensitivity of the sensor while avoiding temperature effects. The structure model and principle for the sensor are introduced, the sensor’s sensing characteristics are theoretically analyzed, and the structure parameters for the sensor are determined through numerical analysis. The sensing experiments show that the resonance frequency of the sensor is approximately 2800 Hz, the sensitivity is 21.8 pm/g in the flat frequency range of 50–1000 Hz, and the proposed sensor has a good temperature self-compensation function and lateral anti-interference capability. |
| first_indexed | 2024-03-10T05:52:35Z |
| format | Article |
| id | doaj.art-12b638cbd2b24cb2aadee7de33392458 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T05:52:35Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-12b638cbd2b24cb2aadee7de333924582023-11-22T21:34:37ZengMDPI AGSensors1424-82202021-10-012121696810.3390/s21216968A Medium-Frequency Fiber Bragg Grating Accelerometer Based on Flexible HingesZichuang Li0Lei Liang1Hui Wang2Shu Dai3Ke Jiang4Zhiyuan Song5National Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan 430070, ChinaNational Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan 430070, ChinaNational Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan 430070, ChinaNational Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan 430070, ChinaNational Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan 430070, ChinaNational Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan 430070, ChinaMediumfrequency fiber Bragg grating (FBG) acceleration sensors are used in important applications in mechanical, aerospace and weapon equipment, and have strict requirements in terms of resonance frequency and sensitivity. A novel medium-frequency accelerometer, based on fiber Bragg grating and flexible hinges, is proposed in this paper. The differential structure doubles the sensitivity of the sensor while avoiding temperature effects. The structure model and principle for the sensor are introduced, the sensor’s sensing characteristics are theoretically analyzed, and the structure parameters for the sensor are determined through numerical analysis. The sensing experiments show that the resonance frequency of the sensor is approximately 2800 Hz, the sensitivity is 21.8 pm/g in the flat frequency range of 50–1000 Hz, and the proposed sensor has a good temperature self-compensation function and lateral anti-interference capability.https://www.mdpi.com/1424-8220/21/21/6968fiber Bragg gratingaccelerometerflexible hingevibration monitoring |
| spellingShingle | Zichuang Li Lei Liang Hui Wang Shu Dai Ke Jiang Zhiyuan Song A Medium-Frequency Fiber Bragg Grating Accelerometer Based on Flexible Hinges Sensors fiber Bragg grating accelerometer flexible hinge vibration monitoring |
| title | A Medium-Frequency Fiber Bragg Grating Accelerometer Based on Flexible Hinges |
| title_full | A Medium-Frequency Fiber Bragg Grating Accelerometer Based on Flexible Hinges |
| title_fullStr | A Medium-Frequency Fiber Bragg Grating Accelerometer Based on Flexible Hinges |
| title_full_unstemmed | A Medium-Frequency Fiber Bragg Grating Accelerometer Based on Flexible Hinges |
| title_short | A Medium-Frequency Fiber Bragg Grating Accelerometer Based on Flexible Hinges |
| title_sort | medium frequency fiber bragg grating accelerometer based on flexible hinges |
| topic | fiber Bragg grating accelerometer flexible hinge vibration monitoring |
| url | https://www.mdpi.com/1424-8220/21/21/6968 |
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