Simultaneous Measurement for Strain and Temperature Based on a Long-Period Grating Combined With a High-Birefringence Fiber Loop Mirror

This work presents an alternative solution for simultaneous measurement of strain and temperature. The sensing head is formed by a long-period fiber grating combined with a high-birefringence fiber loop mirror resulting in a configuration capable of temperature and strain discrimination. These optic...

Full description

Saved in:
Bibliographic Details
Published in:IEEE photonics technology letters 2006-11, Vol.18 (22), p.2407-2409
Main Authors: Frazao, O., Marques, L.M., Santos, S., Baptista, J.M., Santos, J.L.
Format: Article
Language:English
Subjects:
Capacitive sensors
Devices
Diffraction gratings
Discrimination
Error analysis
Fiber gratings
Fiber-loop mirror
Fibers
Gratings (spectra)
long-period grating (LPG)
Mirrors
Optical attenuators
Optical fiber polarization
optical fiber sensors
Optical fibers
Optical filters
Optical sensors
Photonics
Strain
Strain measurement
strain-temperature discrimination
Temperature sensors
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This work presents an alternative solution for simultaneous measurement of strain and temperature. The sensing head is formed by a long-period fiber grating combined with a high-birefringence fiber loop mirror resulting in a configuration capable of temperature and strain discrimination. These optical devices have opposite sensitivity responses when a variation of temperature and/or strain is applied. Maximum errors of plusmn0.8degC and plusmn21muepsiv are reported over 60 degC and 700-muepsiv measurement ranges, respectively
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2006.886139