Distributed temperature sensor using Nd3+ -doped optical fibre

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© The Institution of Electrical Engineers
Published 21/07/2012

Abstract

We report the measurement of temperature distribution with an Nd3+ -doped multimode optical fibre. By exploiting the temperature-sensitive absorption bands of the doped-glass core, temperature was measured to an accuracy of 2°C over the range −50°C to 100°C. A spatial resolution of 15 m over a fibre length of 140 m was obtained.

Inspec keywords: temperature distribution; fibre optic sensors; spectral methods of temperature measurement

Other keywords: doped-glass core; temperature sensor; temperature-sensitive absorption bands; spatial resolution; multimode optical fibre; Nd3+-doped optical fibre; temperature distribution measurement

Subjects: Fibre optics and fibre waveguides; Fibre optics; Thermometry; Fibre optic sensors; Sensing devices and transducers; Thermal variables measurement

References

    1. 1)
    2. 2)
      • Dakin, J.P., Pratt, D.J., Bibby, G.W., Ross, J.N.: `Distributed anti-Stokes ratio thermometry', Proc. PFS 3, Postdeadline paper PD-3, 1985, San Diego
    3. 3)
    4. 4)
    5. 5)
      • Snitzer, E., Morey, W.W., Glen, W.H.: `Fibre optic rare earth temperature sensors', IEE Conf. Publ. 221, First international conference on optical fibre sensors, 1983, London
    6. 6)
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