Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 30,
  • Issue 20,
  • pp. 3252-3258
  • (2012)

Nanoscale Resolution Interrogation Scheme for Simultaneous Static and Dynamic Fiber Bragg Grating Strain Sensing

Not Accessible

Your library or personal account may give you access

Abstract

A combined interrogation and signal processing technique which facilitates high-speed simultaneous static and dynamic strain demodulation of multiplexed fiber Bragg grating sensors is described. The scheme integrates passive, interferometric wavelength-demodulation and fast optical switching between wavelength division multiplexer channels with signal extraction via a software lock-in amplifier and fast Fourier transform. Static and dynamic strain measurements with noise floors of 1 nε and ~10 nε/√Hz, between 5 mHz and 2 kHz were obtained. An inverse analysis applied to a cantilever beam set up was used to characterize and verify strain measurements using finite element modeling. By providing distributed measurements of both ultra-high-resolution static and dynamic strain, the proposed scheme will facilitate advanced structural health monitoring.

© 2012 IEEE

PDF Article
More Like This
Simultaneous distributed static and dynamic sensing based on ultra-short fiber Bragg gratings

Zhengying Li, Yuheng Tong, Xuelei Fu, Jiaqi Wang, Qingqing Guo, Haihu Yu, and Xiaoyi Bao
Opt. Express 26(13) 17437-17446 (2018)

Realization of nano static strain sensing with fiber Bragg gratings interrogated by narrow linewidth tunable lasers

Qingwen Liu, Tomochika Tokunaga, and Zuyuan He
Opt. Express 19(21) 20214-20223 (2011)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved