Fiber-Optic Thermometer Based on Thermal Radiation from Holmium Doped SiO&lt;SUB&gt;2&lt;/SUB&gt;

Katsumata, Tōru; Iguchi, Tetsuo; Morita, K.; Aizawa, Hiroaki; Komuro, S.; Morikawa, T.

doi:10.1166/sl.2005.028

Cited by 8 publications

(8 citation statements)

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“…1125pm =9.4093 + 0.54036 (4) 11.5mm= 6.4858 + 0.11863 (5) 12mm= 2.292 + 0.0055684 (6) From the figure, large sensor seems to be stable against the fluctuation. Figure 6 shows distribution of thermally excited luminescence intensity ratio measured with Er end doped silica fiber sensor in a flame.…”

Section: According To Eqs (1) -(3)mentioning

confidence: 97%

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Two dimensional temperature measurements by X-Y scanning of Er end doped silica fiber sensor

Morita

Okabe

Ito

et al. 2006

2006 SICE-ICASE International Joint Conference

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Fiber-optic thermal radiation thermometry was studied using Er end doped silica fiber sensor. Visible light radiation peaks were clearly observed at k= 522nm and, 655nm, 800nm and 984nm from Er end doped silica fibers sensor. Theses peaks increase greatly with temperature of the sensor. Intensity ratio of thermally excited luminescence peaks at k= 522nm and 984nm, 1522/984, is suitable for the high temperature measurement. Two dimensional (2-D) temperature distributions in a flame are successfully visualized by X-Y scanning technique using Er end doped silica fiber sensor.

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Section: According To Eqs (1) -(3)mentioning

confidence: 97%

“…Fiber-optic thermometer has attracted much attentions for the application of temperature measurement in strong electromagnetic field, chemically active environment and high temperature [1][2][3][4][5][6]. Fluorescence thermo-sensor using temperature sensitive phosphors and/or thermal radiation sensor are used in fiber-optic thermometers.…”

Section: Introductionmentioning

confidence: 99%

Two dimensional temperature measurements by X-Y scanning of Er end doped silica fiber sensor

Morita

Okabe

Ito

et al. 2006

2006 SICE-ICASE International Joint Conference

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“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] The fiber-optic thermometers based on the fluorescence intensities of phosphors have some advantages at lower temperature against those using the thermal radiation. Fluorescence thermometers are, however, not so convenient at high temperature region above 1200 K because of decreasing PL intensity and PL lifetime due to thermal quenching.…”

Section: Introductionmentioning

confidence: 99%

“…The fiber-optic thermometer using the thermal radiation in visible light wavelength (fiber-optic pyrometer) can be developed using rare-earth end doped SiO 2 sensors and commercially available SiO 2 fibers [14][15][16] which is highly transparent at visible light wavelength. However, thermal emissivity of non-doped SiO 2 fiber in visible light wavelength is extremely weak at temperatures below 1400 K. Highly emissive sensor materials are required for a fiber-optic pyrometer using SiO 2 fiber.…”

Section: Introductionmentioning

confidence: 99%

“…The authors have reported a fiber-optic pyrometer using Ho, Tm, and/or Eu end doped SiO 2 fibers. [14][15][16] Rare-earth end-doped SiO 2 fibers are very convenient because these are easily connected to SiO 2 optical fiber. Thermal activation of f-electrons in rare-earth elements, such as Ho and Tm, results in the strong thermal radiation in visible light wavelength.…”

Section: Introductionmentioning

confidence: 99%

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Fiber-optic thermometer application of thermal radiation from rare-earth end-doped SiO2 fiber

Katsumata

Morita

Komuro

et al. 2014

Review of Scientific Instruments

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Visible light thermal radiation from SiO2 glass doped with Y, La, Ce, Pr, Nd, Eu, Tb, Dy, Ho, Er, Tm, Yb, and Lu were studied for the fiber-optic thermometer application based on the temperature dependence of thermal radiation. Thermal radiations according to Planck's law of radiation are observed from the SiO2 fibers doped with Y, La, Ce, Pr, Eu, Tb, and Lu at the temperature above 1100 K. Thermal radiations due to f-f transitions of rare-earth ions are observed from the SiO2 fibers doped with Nd, Dy, Ho, Er, Tm, and Yb at the temperature above 900 K. Peak intensities of thermal radiations from rare-earth doped SiO2 fibers increase sensitively with temperature. Thermal activation energies of thermal radiations by f-f transitions seen in Nd, Dy, Ho, Er, Tm, and Yb doped SiO2 fibers are smaller than those from SiO2 fibers doped with Y, La, Ce, Pr, Eu, Tb, and Lu. Thermal radiation due to highly efficient f-f transitions in Nd, Dy, Ho, Er, Tm, and Yb ions emits more easily than usual thermal radiation process. Thermal radiations from rare-earth doped SiO2 are potentially applicable for the fiber-optic thermometry above 900 K.

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Photoluminescence and thermal radiation from Eu and Al doped SiO2 for fiber-optic thermometer application

Katsumata

Komuro

Aizawa

2014

Journal of Luminescence

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Fiber-Optic Thermometer Based on Thermal Radiation from Holmium Doped SiO<SUB>2</SUB>

Cited by 8 publications

References 0 publications

Two dimensional temperature measurements by X-Y scanning of Er end doped silica fiber sensor

Two dimensional temperature measurements by X-Y scanning of Er end doped silica fiber sensor

Fiber-optic thermometer application of thermal radiation from rare-earth end-doped SiO2 fiber

Photoluminescence and thermal radiation from Eu and Al doped SiO2 for fiber-optic thermometer application

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