Low-frequency FBG vibration sensors for micro-seismic monitoring

被引:4
作者
Hong, Li [1 ,2 ]
Zhang, Yufeng [1 ,2 ]
Li, Lixin [1 ,2 ]
Zhang, Peng [1 ,2 ]
Liu, Jiaxuan [1 ,2 ]
机构
[1] Inst Disaster Prevent, Sanhe 065201, Hebei, Peoples R China
[2] Hebei Key Lab Seism Disaster Instrument & Monitori, Sanhe 065201, Hebei, Peoples R China
关键词
fiber Bragg grating (FBG); micro-seismic monitoring; L-shaped rigid beam; low-frequency vibration; differential evolution algorithm (DE); ACCELEROMETER; GEOPHONE; DESIGN;
D O I
10.1088/1361-6501/ace4e7
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Vibration sensors are key components in low-frequency micro-seismic monitoring, and their performance directly determines the accuracy of monitoring results. In response to the current problem that fiber Bragg grating (FBG) vibration sensors are difficult to effectively monitor micro-seismic low-frequency vibration signals, a rigid L-shaped beam FBG vibration sensor based on bearings is proposed. Firstly, a sensor model is established and theoretically analyzed; secondly, key parameters are optimized using differential evolution algorithm and imported into COMSOL simulation software for static stress analysis and dynamic characteristic analysis; finally, the sensor prototype is developed and a low-frequency vibration test system is set up to verify the sensor performance. The results reveal that the inherent frequency of the sensor is 57 Hz, with a flat response band of 0.3-35 Hz, a frequency lower limit of 0.05 Hz, a transverse interference degree of 4.5%, an average sensitivity of over 800 pm g(-1), a dynamic range of 67.75 dB, favorable linearity, and the ability to achieve temperature self-compensation. Research findings provide new insights into low-frequency micro-seismic monitoring.
引用
收藏
页数:12
相关论文
共 19 条
[1]   The Sensitivity Design of Piezoresistive Acceleration Sensor in Industrial IoT [J].
Dong, Chen ;
Ye, Yin ;
Liu, Ximeng ;
Yang, Yang ;
Guo, Wenzhong .
IEEE ACCESS, 2019, 7 :16952-16963
[2]   Low-frequency fiber bragg grating accelerometer based on cantilever [J].
Fan, Wei ;
Wen, Jin ;
Gao, Hong ;
Qiao, Xueguang .
OPTICAL FIBER TECHNOLOGY, 2022, 70
[3]   Earthquake-Induced Chains of Geologic Hazards: Patterns, Mechanisms, and Impacts [J].
Fan, Xuanmei ;
Scaringi, Gianvito ;
Korup, Oliver ;
West, A. Joshua ;
van Westen, Cees J. ;
Tanyas, Hakan ;
Hovius, Niels ;
Hales, Tristram C. ;
Jibson, Randall W. ;
Allstadt, Kate E. ;
Zhang, Limin ;
Evans, Stephen G. ;
Xu, Chong ;
Li, Gen ;
Pei, Xiangjun ;
Xu, Qiang ;
Huang, Runqiu .
REVIEWS OF GEOPHYSICS, 2019, 57 (02) :421-503
[4]   Extreme Accelerations During Earthquakes Caused by Elastic Flapping Effect [J].
Goto, Hiroyuki ;
Kaneko, Yoshihiro ;
Young, John ;
Avery, Hamish ;
Damiano, Len .
SCIENTIFIC REPORTS, 2019, 9 (1)
[5]   Highly Sensitive FBG Seismometer With a 3D-Printed Hexagonal Configuration [J].
Guo, Teng ;
Zhang, Tianxi ;
Li, Yizhuo ;
Qiao, Xueguang .
JOURNAL OF LIGHTWAVE TECHNOLOGY, 2020, 38 (16) :4588-4595
[6]   Fiber Bragg grating sensor-based monitoring strategy for slope deformation in centrifugal model test [J].
Guo, Yongxing ;
Fu, Jianjun ;
Li, Longqi ;
Xiong, Li .
SENSOR REVIEW, 2019, 39 (01) :71-77
[7]  
Hafizi Z. M., 2021, IOP Conference Series: Materials Science and Engineering, V1078, DOI 10.1088/1757-899X/1078/1/012012
[8]   Design and Analysis of MEMS Comb Drive Capacitive Accelerometer for SHM and Seismic Applications [J].
Kavitha, S. ;
Daniel, R. Joseph ;
Sumangala, K. .
MEASUREMENT, 2016, 93 :327-339
[9]   Acceleration sensitivity of piezoelectric pressure sensors and the influence on the measurement of explosion pressures [J].
Krause, Tim ;
Kanbur, Harun ;
Springer, Niels ;
Brunzendorf, Jens ;
Markus, Detlev ;
Walch, Otto ;
Heer, Christian .
JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES, 2023, 82
[10]   Development of low frequency and high sensitivity fiber optic accelerometer based on multi-stage flexure hinges [J].
Li, Huidong ;
Gao, Hong ;
Fan, Wei ;
Zhou, Rui ;
Qiao, Xueguang .
OPTICAL FIBER TECHNOLOGY, 2022, 73