Fiber-optic thermometry using thermal radiation from Tm end doped SiO2 fiber sensor.
Rev Sci Instrum
; 85(4): 044902, 2014 Apr.
Article
em En
| MEDLINE
| ID: mdl-24784643
ABSTRACT
Fiber-optic thermometry based on temperature dependence of thermal radiation from Tm(3+) ions was studied using Tm end doped SiO2 fiber sensor. Visible light radiation peaks due to f-f transition of Tm(3+) ion were clearly observed at λ = 690 and 790 nm from Tm end doped SiO2 fibers sensor at the temperature above 600 °C. Thermal radiation peaks are assigned with f-f transition of Tm(3+) ion, (1)D2-(3)H6, and (1)G4-(3)H6. Peak intensity of thermal radiation from Tm(3+) ion increases with temperature. Intensity ratio of thermal radiation peaks at λ = 690 nm against that at λ = 790 nm, I790/690, is suitable for the temperature measurement above 750 °C. Two-dimensional temperature distribution in a flame is successfully evaluated by Tm end doped SiO2 fiber sensor.
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01-internacional
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MEDLINE
Idioma:
En
Ano de publicação:
2014
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Article