光纤光栅在低阻抗材料动态性能测试中的应用

王为; 林玉池; 朱萍玉

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光纤光栅在低阻抗材料动态性能测试中的应用

现代应用光学 | 更新时间：2020-08-12

- 光纤光栅在低阻抗材料动态性能测试中的应用
- Application of FBG sensor to measurement of dynamic performance of low impedance material
- 光学精密工程 2009年17卷第3期页码：488-492
- 作者机构：
  
  天津大学精密测试技术及仪器国家重点实验室,天津 300072
- 作者简介：
- 基金信息：
  
  教育部博士点专项科研基金资助项目(No.2003006017)()
- DOI：
  中图分类号： O482.526;TN253
- 收稿日期：2008-04-22，
  
  修回日期：2008-11-18，
  
  网络出版日期：2009-03-25，
  
  纸质出版日期：2009-03-25
- 稿件说明：
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王为, 林玉池, 朱萍玉. 光纤光栅在低阻抗材料动态性能测试中的应用[J]. 光学精密工程, 2009,17(3): 488-492

WANG Wei, LIN Yu-chi, ZHU Ping-yu. Application of FBG sensor to measurement of dynamic performance of low impedance material[J]. Editorial Office of Optics and Precision Engineering, 2009,17(3): 488-492
王为, 林玉池, 朱萍玉. 光纤光栅在低阻抗材料动态性能测试中的应用[J]. 光学精密工程, 2009,17(3): 488-492 DOI：

WANG Wei, LIN Yu-chi, ZHU Ping-yu. Application of FBG sensor to measurement of dynamic performance of low impedance material[J]. Editorial Office of Optics and Precision Engineering, 2009,17(3): 488-492 DOI：

摘要

研究了光纤Bragg光栅在材料性能测试方面的应用。介绍了基于分离式霍布金逊压杆(SHPB)的低阻抗材料动态性能测试的原理

探讨了光纤光栅传感器用于SHPB实验装置中进行应变测试的相关问题。推导了低阻抗弹性杆中传播的应力波与光纤光栅传感器的波长漂移量之间的关系式

构建了光纤光栅高频动态应变测试系统

对SHPB实验装置中被撞击弹性杆的表面应变进行了测试

并与现有仪器进行了对比。实验结果显示

构建的光纤光栅动态应变测试系统在10 kHz的频率范围内

具有40 dB的信噪比。研究表明

光纤光栅在低阻抗材料的动态性能测试中具有很好的应用前景。

Abstract

The application of Fiber Bragg Grating(FBG) sensor to measurement of material property is researched. The principle of Split Hopkinson Pressure Bar (SHPB) for dynamic performance measurement of low impedance material is introduced and the problems related to the application of FBG sensor in SHPB for strain testing are discussed. The relation between the strain wave propagating in elastic bar of low impedance material and the wavelength shift is derived. Then

the interrogation system for high frequency dynamic strain measurement based on FBG is set up and the surface strain of elastic bar in SHPB is measured with the interrogation system and compared with the instrument PI02-04.The experimental results show that the interrogation system has good performance during 10 kHz and its signal-to-noise is about 40 dB.Research results prove that FBG sensor has a good application prospect in the dynamic performance measurement of low impedance material.

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references

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