二维低频光纤布拉格光栅振动传感器的设计

刘强; 李文静; 马超; 魏淑辉; 付天舒; 于波; 刘超

doi:10.37188/CO.2024-0069

二维低频光纤布拉格光栅振动传感器的设计

doi: 10.37188/CO.2024-0069

cstr: 32171.14.CO.2024-0069

东北石油大学物理与电子工程学院, 黑龙江大庆 163318

基金项目: 黑龙江省省属本科高校“优秀青年教师基础研究支持计划”（No. YQJH2023077）

详细信息

作者简介:
刘　强（1980—），男，黑龙江泰来人，博士，教授，2012年于哈尔滨工程大学获得博士学位，主要从事光纤传感技术研究。 E-mail：nepulq@126.com

刘　超（1978—），男，黑龙江木兰人，博士，教授，博士生导师，2008年于哈尔滨工业大学获得博士学位，主要从事微结构光学器件研究。E-mail：msm-liu@126.com

中图分类号: TP212.9
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出版历程
- 收稿日期: 2024-04-12
- 修回日期: 2024-04-30
- 录用日期: 2024-06-25
- 网络出版日期: 2024-08-21

Design of two-dimensional low-frequency fiber Bragg grating vibration sensor

School of Physics and Electronic Engineering, Northeast Petroleum University, Daqing 163318, China

Funds: Supported by The Basic Research Support Project for the Excellent Youth Scholars of Heilongjiang Province (No. YQJH2023077)

More Information

Corresponding author: msm-liu@126.com

摘要

摘要:
本文设计了一种可在x轴和z轴方向工作的对称圆形柔性铰链式二维振动传感器，以对低频振动信号进行获取和监测。从理论上分析了传感结构的力学特性，在Comsol中建立模型进行仿真分析，并采用有限元法对结构进行优化设计，将铰链谐振频率设计为420 Hz。采用光纤布拉格光栅（FBG）作为应变检测器件粘贴在铰链结构表面，利用边沿滤波器法实现FBG的动态解调，采用标准振动台对传感器性能进行测试。实验结果表明该传感器在x轴和z轴的谐振频率为420 Hz，工作频率为20~300 Hz。在平坦区的平均灵敏度为1847.32 mV/g，加速度分辨率达5.41×10⁻⁴ g。该传感器在所有二维方向上的横向干扰水平均小于5%。本文设计的传感器为二维振动传感器，可适用于低频振动信号的高灵敏检测。
- 加速度传感器 /
- 振动检测 /
- 光纤布拉格光栅 /
- 铰链结构
Abstract:
In order to acquire and monitor the low-frequency vibration signal, a two-dimensional vibration sensor with a symmetrical circular flexure hinge is designed, which can work in the x and z axes. The mechanical characteristics of the sensing structure are analyzed theoretically. The model is established in Comsol for simulation analysis, and the structure is optimized by finite element method. The hinge resonant frequency is designed to be 420 Hz. The fiber Bragg grating is pasted on the surface of the hinge structure as a strain detection device, and the dynamic demodulation of FBG is realized by the edge filter method. The performance of the sensor is tested with a standard shaking table. The experimental results show that the natural frequencies of the sensor in the x and z axes both are 420 Hz, the operating frequency range is 20−300 Hz, the average sensitivity in the flat region is 1847.32 mV/g, and the acceleration resolution is 5.41×10⁻⁴ g. The sensor demonstrates a less than 5% lateral interference level in all two-dimensional orientations. The sensor designed in this paper is a two-dimensional vibration sensor, which is suitable for highly sensitive detection of low-frequency vibration signals.
- acceleration sensor /
- vibration test /
- Fiber Bragg Grating /
- hinged construction

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图 1 传感器结构模型

Figure 1. The sensing structure model

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图 2 传感结构仿真分析结果

Figure 2. Simulation analysis results of sensing structure

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图 3 不同结构参数对应变和固有频率的影响

Figure 3. The influence of different structural parameters on strain and natural frequency

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图 4 光纤光栅边缘解调方法

Figure 4. The edge demodulation method of FBG

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图 5 实验装置

Figure 5. Experimental setup

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图 6 不同波长解调的幅频响应实验

Figure 6. Amplitude-frequency response at different wavelengths

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图 7 传感器响应实验

Figure 7. Response experiment of the sensor

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图 8 不同振动频率下的传感器灵敏度

Figure 8. The sensitivity of the sensor at different vibration frequencies

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图 9 传感器的交叉干扰特性

Figure 9. The cross-interference characteristics of the sensor

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参考文献(24)

[1]	DU C, DUTTA S, KURUP P, et al. A review of railway infrastructure monitoring using fiber optic sensors[J]. Sensors and Actuators A: Physical, 2020, 303: 111728. doi: 10.1016/j.sna.2019.111728
[2]	AZHAR A S, KUDUS S A, JAMADIN A, et al. Recent vibration-based structural health monitoring on steel bridges: systematic literature review[J]. Ain Shams Engineering Journal, 2024, 15(3): 102501. doi: 10.1016/j.asej.2023.102501
[3]	SONG G D, WANG J Y, LIU T Y, et al. Optical fiber grating strain acceleration sensors ground vibration experimental research[J]. Procedia Engineering, 2011, 26: 784-793. doi: 10.1016/j.proeng.2011.11.2238
[4]	JOHNSON SINGH M, CHOUDHARY S, CHEN W B, et al. Applications of fibre Bragg grating sensors for monitoring geotechnical structures: a comprehensive review[J]. Measurement, 2023, 218: 113171. doi: 10.1016/j.measurement.2023.113171
[5]	YÜKSEL K, KINET D, MOEYAERT V, et al. Railway monitoring system using optical fiber grating accelerometers[J]. Smart Materials and Structures, 2018, 27(10): 105033. doi: 10.1088/1361-665X/aadb62
[6]	ZHU L Q, SUN G K, BAO W M, et al. Structural deformation monitoring of flight vehicles based on optical fiber sensing technology: a review and future perspectives[J]. Engineering, 2022, 16: 39-55. doi: 10.1016/j.eng.2021.02.022
[7]	GAO ZH Y, ZHU X J, FANG Y B, et al. Active monitoring and vibration control of smart structure aircraft based on FBG sensors and PZT actuators[J]. Aerospace Science and Technology, 2017, 63: 101-109. doi: 10.1016/j.ast.2016.12.027
[8]	WANG R H, LI Y Z, QIAO X G. Recent advances in multidimensional fiber Bragg grating accelerometers[J]. Journal of Lightwave Technology, 2023, 41(13): 4238-4247. doi: 10.1109/JLT.2023.3241953
[9]	WEI L, JIANG D ZH, YU L L, et al. A novel miniaturized fiber Bragg grating vibration sensor[J]. IEEE Sensors Journal, 2019, 19(24): 11932-11940. doi: 10.1109/JSEN.2019.2936596
[10]	徐国权, 熊代余. 光纤光栅传感技术在工程中的应用[J]. 中国光学,2013,6(3):306-317. XU G Q, XIONG D Y. Applications of fiber Bragg grating sensing technology in engineering[J]. Chinese Optics, 2013, 6(3): 306-317. (in Chinese).
[11]	LI T L, GUO J X, TAN Y G, et al. Recent advances and tendency in fiber Bragg grating-based vibration sensor: a review[J]. IEEE Sensors Journal, 2020, 20(20): 12074-12087. doi: 10.1109/JSEN.2020.3000257
[12]	吴晶, 吴晗平, 黄俊斌, 等. 光纤光栅传感信号解调技术研究进展[J]. 中国光学,2014,7(4):519-531. WU J, WU H P, HUANG J B, et al. Research progress in signal demodulation technology of fiber Bragg grating sensors[J]. Chinese Optics, 2014, 7(4): 519-531. (in Chinese).
[13]	FAN X Y, GE L, GE CH, et al. A dual oblique wing-based low-frequency FBG accelerometer[J]. Optical Fiber Technology, 2023, 81: 103526. doi: 10.1016/j.yofte.2023.103526
[14]	ZHAO X F, JIA ZH A, FAN W, et al. A fiber Bragg grating acceleration sensor with temperature compensation[J]. Optik, 2021, 241: 166993. doi: 10.1016/j.ijleo.2021.166993
[15]	YAO H ZH, LI Y Q, YANG Z. A novel fiber Bragg grating acceleration sensor for measurement of vibration[J]. Optik, 2016, 127(20): 8874-8882. doi: 10.1016/j.ijleo.2016.06.105
[16]	ZHANG F X, JIANG SH D, WANG C, et al. Broadband and high sensitivity FBG accelerometer based on double diaphragms and h-shaped hinges[J]. IEEE Sensors Journal, 2021, 21(1): 353-359. doi: 10.1109/JSEN.2020.3013611
[17]	FAN W, WEN J, GAO H, et al. Low-frequency fiber Bragg grating accelerometer based on diaphragm-type cantilever[J]. Optical Fiber Technology, 2022, 70: 102888. doi: 10.1016/j.yofte.2022.102888
[18]	宋颖, 张浩然, 李剑芝, 等. 基于轴承和柔性铰链的布拉格光纤光栅加速度计[J]. 中国光学(中英文),2023,16(5):1109-1120. doi: 10.37188/CO.2022-0252 SONG Y, ZHANG H R, LI J ZH, et al. Fiber Bragg grating accelerometer based on flexure hinge and bearing[J]. Chinese Optics, 2023, 16(5): 1109-1120. (in Chinese). doi: 10.37188/CO.2022-0252
[19]	SONG H, SONG E ZH, PENG W, et al. Miniature structure optimization of small-diameter FBG-based one-dimensional optical fiber vibration sensor[J]. IEEE Sensors Journal, 2021, 21(23): 26763-26771. doi: 10.1109/JSEN.2021.3120139
[20]	YAN B, LIANG L. A novel fiber Bragg grating accelerometer based on parallel double flexible hinges[J]. IEEE Sensors Journal, 2020, 20(9): 4713-4718. doi: 10.1109/JSEN.2019.2925017
[21]	SHAO M, LIANG J J, GAO H, et al. Medium and low frequency fiber Bragg grating acceleration sensor based on single-sided single-arc hinge[J]. Optical Fiber Technology, 2022, 69: 102814. doi: 10.1016/j.yofte.2021.102814
[22]	ZHANG L, LIU M Y, HONG L, et al. Design and optimization of an FBG accelerometer based on single-notch circular flexure hinge for medium-frequency vibration measurement[J]. IEEE Sensors Journal, 2022, 22(21): 20303-20311. doi: 10.1109/JSEN.2022.3207780
[23]	LUO X D, LI Y F, FENG D Q, et al. Fiber Bragg grating accelerometer based on symmetrical double flexure hinges[J]. Optical Fiber Technology, 2022, 68: 102795. doi: 10.1016/j.yofte.2021.102795
[24]	LE H D, CHIANG C C, NGUYEN C N, et al. A 2-D Fiber Bragg grating acceleration sensor based on circular flexure hinges structure[J]. IEEE Transactions on Instrumentation and Measurement, 2023, 72: 7004411.