基于轴承和柔性铰链的布拉格光纤光栅加速度计

宋颖; 张浩然; 李剑芝; 申博豪; 刘占剑

doi:10.37188/CO.2022-0252

Volume 16 Issue 5

Sep. 2023

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Chinese Optics > 2023 > 16(5): 1109-1120.

SONG Ying, ZHANG Hao-ran, LI Jian-zhi, SHEN Bo-hao, LIU Zhan-jian. Fiber bragg grating accelerometer based on flexure hinge and bearing[J]. Chinese Optics, 2023, 16(5): 1109-1120. doi: 10.37188/CO.2022-0252

Citation:

SONG Ying, ZHANG Hao-ran, LI Jian-zhi, SHEN Bo-hao, LIU Zhan-jian. Fiber bragg grating accelerometer based on flexure hinge and bearing[J]. Chinese Optics, 2023, 16(5): 1109-1120. doi: 10.37188/CO.2022-0252

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Fiber bragg grating accelerometer based on flexure hinge and bearing

doi: 10.37188/CO.2022-0252

SONG Ying^{1, 2
,},
ZHANG Hao-ran^{1, 2},
LI Jian-zhi^{3
,
,},
SHEN Bo-hao^{3, 4},
LIU Zhan-jian^{3, 5}

1.
Key Laboratory of Traffic Safety and Control of Hebei Province, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
2.
School of Traffic and Transportation, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
3.
Structural Health Monitoring and Control Institute, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
4.
School of Mechanical Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
5.
School of Materials Science and Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China

Funds: Supported by National Key Research and Development Program (No. 2021YFB2601000); Central Leading Local Science and Technology Development Fund (No. 226Z0801G, No. 216Z3901G)

More Information

Corresponding author: lijianzhigang@163.com
Received Date: 07 Dec 2022
Rev Recd Date: 23 Dec 2022

Available Online: 25 Apr 2023

Abstract

Abstract

We develop a fiber Bragg grating accelerometer based on a bearing and flexure hinge for the measurement of medium-high frequency vibration signals. The mathematical model between its natural frequency and sensitivity and structural parameters is derived based on a mechanical model, and the structural design is optimized based on the theoretical analysis results. With these prerequisites, the sensor was fabricated. Ultimately, its dynamic characteristics are validated using a finite element simulation and vibration experiment. The results show that both its operating frequency range and acceleration sensitivity are 10−1200 Hz and 17.25 pm/g. In addition, this proposed sensor has some advantages such as an error of less than 0.3 g, a good linearity of greater than 0.99, a repeatability error of 2.33%, and it is free of temperature.
- sensor,
- accelerometer,
- fiber Bragg grating,
- mid-high frequency,
- bearing,
- flexure hinge

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References(26)

References

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