Simultaneous measurement of temperature and strain using dual long-period fiber gratings with controlled temperature and strain sensitivities
- 10 March 2003
- journal article
- Published by Optica Publishing Group in Optics Express
- Vol. 11 (5) , 476-481
- https://doi.org/10.1364/oe.11.000476
Abstract
Unambiguous simultaneous measurement of strain and temperature based on dual long-period fiber gratings by controlling their thermal and strain sensitivities is proposed and experimentally demonstrated. The difference in the wavelength peak shift and the separation with the variation of strain and temperature allows discrimination between the strain and temperature effects, respectively.Keywords
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