A fiber-optic temperature sensor |
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Authors: | P. V. Volkov A. V. Goryunov A. Yu. Luk’yanov A. D. Tertyshnik M. V. Belikovich V. V. Travkin |
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Affiliation: | 19864. Institute for Physics of Microstructures, Russian Academy of Sciences, Nizhnii Novgorod, Russia
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Abstract: | In this paper we demonstrate the feasibility of designing a fiber-optic temperature sensor based on the principles of low-coherent tandem interferometry; the sensitive element represents a plane-parallel plate produced from fused silica of thickness 500 µm (the corresponding measurement range is between 40 and 90°C). In the middle of the range, the temperature resolution reaches 0.03°C RMS and goes down to 0.1°C RMS at the boundaries. The worst-case repeatability of measurements of the sensor makes up 0.2°C. |
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