Effect of strain on temperature measurements using the fluorescence intensity ratio technique (with Nd3+- and Yb3+-doped silica fibers)
- 1 August 2001
- journal article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 72 (8) , 3180-3185
- https://doi.org/10.1063/1.1387250
Abstract
The effect of strain upon the fluorescence intensity ratio technique of optical fiber based temperature sensing has been investigated using a series of different Yb 3+ - and Nd 3+ -doped optical fibers.Measurements were conducted with each of the doped fibers for temperatures between approximately 10 and 140 ° C and for strain values between 50 and 2100 με. Results suggest that the strain-temperature cross sensitivity for the fluorescence intensity ratio method is minimal, with an applied strain of 1000 με inducing temperature errors of less than 0.4 ° C .Keywords
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