2011, Vol.14, No.4, pp.405-410
Fluorescence intensity ratio (FIR) sensors are a promising type of
fiber-optic temperature sensors that are based on measurement of
fluorescence intensity ratio from two temperature-coupled energy
levels. We study transparent lead-fluoride glass-based
nano-glass-ceramics as a sensing element of FIR sensors. Such
media combine positive properties of both glass host and doped
nanocrystals. On the basis of a theoretical model of a FIR sensor
developed the modeling of the sensor is performed taking noises
into account. It is planned to perform optimization of dopant ions
concentration and secondary heat treatment regimes as well as to
determine ultimate accuracy of temperature measurement by FIR
sensors.
Key words:
fluorescence temperature sensor, FIR sensor, power ratio
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