Design of coefficient-adjustable FBG strain sensors

HE Jun; ZHOU Zhi; DONG Hui-juan; ZHANG Guang-yu; OU Jin-ping

doi:10.3788/OPE.20101811.2339

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Design of coefficient-adjustable FBG strain sensors

Article | 更新时间：2020-08-12

- Design of coefficient-adjustable FBG strain sensors
- Optics and Precision Engineering Vol. 18, Issue 11, Pages: 2339-2346(2010)
- 作者机构：
  
  1. 哈尔滨工业大学机电工程学院,黑龙江哈尔滨 150001
  2. 哈尔滨工业大学土木工程学院,黑龙江哈尔滨 150090
  3. 大连理工大学土木与水利工程学院,辽宁大连 116024
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20101811.2339
  CLC： TP212.14;TN253
- Received：05 August 2009，
  
  Revised：29 January 2010，
  
  Published Online：25 November 2010，
  
  Published：25 November 2010
- 稿件说明：
移动端阅览
何俊, 周智, 董惠娟, 张广玉, 欧进萍. 灵敏度系数可调布拉格光栅应变传感器的设计[J]. 光学精密工程, 2010,18(11): 2339-2346

HE Jun, ZHOU Zhi, DONG Hui-juan, ZHANG Guang-yu, OU Jin-ping. Design of coefficient-adjustable FBG strain sensors[J]. Editorial Office of Optics and Precision Engineering, 2010,18(11): 2339-2346
何俊, 周智, 董惠娟, 张广玉, 欧进萍. 灵敏度系数可调布拉格光栅应变传感器的设计[J]. 光学精密工程, 2010,18(11): 2339-2346 DOI： 10.3788/OPE.20101811.2339.

HE Jun, ZHOU Zhi, DONG Hui-juan, ZHANG Guang-yu, OU Jin-ping. Design of coefficient-adjustable FBG strain sensors[J]. Editorial Office of Optics and Precision Engineering, 2010,18(11): 2339-2346 DOI： 10.3788/OPE.20101811.2339.

摘要

针对裸光纤布拉格光栅应变监测量程或精度有限的问题

提出了一种灵敏度系数可调光纤布拉格光栅应变传感器的设计方法。理论和实验研究了该方法在增大光纤布拉格光栅应变监测量程或提高精度方面的性能

并以此研制了基片表面粘贴式和FRP封装式两种封装结构的灵敏度系数可调应变传感器。理论分析并实验标定了传感器的灵敏度系数。最后

对传感器理论和实验灵敏度系数误差进行了分析

指出了改进的方向。实验结果表明:两种封装结构的大量程传感器的量程分别增加了243%和126%

高精度传感器的精度提高至0.51 和0.52 。传感器标定实验表明

两种封装结构的传感器都有很好的线性度和重复性

Abstract

A design method for coefficient-adjustable FBG strain sensors was given out to deal with the problem of the limited scale or precision for a Fiber Bragg Grating(FBG) strain monitor. Theoretical and experimental researches were performed to test the characters of the sensors on long-gauge or high precision

then two kinds of high qualified FBG strain sensors(slice mode and FRG packaging mode) were developed and fabricated to validate the design. The sensitivity coefficient of each sensor was analyzed

and it was also calibrated by experiments. Finally

the errors between theoretical and experimental sensitivity coefficients were analyzed. Experimental results indicate that the ranges of the long-gauge sensors have increased by 243% and 126%

and the accuracies of the high-precision sensors have reached 0.51 and 0.52

respectively. In the experiments of calibrations

both kinds of sensors show good linearity and repeatability

and the correlation coefficient is up to 0.999.

关键词

Keywords

references

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