A Fiber Bragg Grating acceleration sensor with temperature compensation

被引：28

作者：

Zhao, Xianfeng ^{[1
,2
,3
,4
]}

Jia, Zhen'an ^{[1
,2
,3
,4
]}

Fan, Wei ^{[1
,2
,3
,4
]}

Liu, Wangfei ^{[1
,2
,3
,4
]}

Gao, Hong ^{[1
,2
,3
,4
]}

Yang, Kaiqing ^{[1
,2
,3
,4
]}

Yu, Dakuan ^{[1
,2
,3
,4
]}

机构：

[1] Key Lab CNPC, Res Lab Opt Fiber Dynam Detect Oil Reservoirs, Xian 710065, Peoples R China

[2] Shaanxi Engn Res Ctr Oil & Gas Resource Opt Fiber, Xian 710065, Peoples R China

[3] Shaanxi Key Lab Measurement & Control Technol Oil, Xian 710065, Peoples R China

[4] Xian Shiyou Univ, Sch Sci, Xian 710065, Peoples R China

来源：

OPTIK | 2021年 / 241卷

关键词：

Fiber Bragg Grating (FBG); Accelerometer; Temperature; Sensor; FBG ACCELEROMETER; DESIGN;

D O I：

10.1016/j.ijleo.2021.166993

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A Fiber Bragg Grating(FBG) accelerometer based on a composite beam is proposed. Owing to the opposite movement of the two FBGs, the influence of temperature can be reduced and the sensitivity can be improved by the difference operation of FBGs' center wavelength shift. Through theoretical analysis and simulation of the proposed sensor, the sensor structure parameters are determined. The theory of the proposed sensor is verified by experiments, and the experimental results show that the temperature impact on the sensor structure is reduced to 0.47 pm/celcius in the range of 25-75 celcius. The accelerometer has a good response flat region at 40-140 Hz and the sensitivity is 234.5 pm/g. The orthogonal crosstalk of the accelerometer is -21.01 dB. The proposed FBG acceleration sensor has a good application prospect in low-frequency oil and gas seismic exploration.

引用

页数：9

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