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Simultaneous measurement of temperature and strain based on ARC‐induced long‐period fiber gratings. A case study
Author(s) -
Rego G.
Publication year - 2008
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.23644
Subject(s) - concatenation (mathematics) , arc (geometry) , strain (injury) , materials science , inverse , period (music) , temperature measurement , optical fiber , fiber , fiber bragg grating , microwave , optics , optoelectronics , computer science , acoustics , composite material , physics , engineering , telecommunications , mechanical engineering , mathematics , medicine , geometry , combinatorics , quantum mechanics
We present a potential sensor head for the simultaneous measurement of temperature and strain based on the concatenation of two long‐period fiber gratings arc‐induced in different fibers. Despite being the temperature and strain sensitivities of the individual gratings well defined, we demonstrate that the sensor cannot perform the simultaneous measurement of those physical parameters. This fact, results from the uncertainty in finding the determinant of the inverse matrix. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 2472–2474, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23644