Development of fiber optical temperature sensor based on fluorescence lifetime

摘要

This paper puts forward a kind of optical fiber temperature sensor based on fluorescence lifetime, which can be applied to measurement in strong electromagnetic, strong corrosion and other harsh environment. A small volume, long service life, strong anti-jamming capability of fluorescence temperature sensor was designed by matching rare earth fluorescent material with longer fluorescent lifetime with tee optical coupler. The experimental results show that this method has a high measuring precision within the scope of 0-90℃.