为了实现恶劣环境下温度的测量,设计了一种基于荧光寿命机理的光纤温度传感系统.温度传感系统选用415 nM lEd作为光源,以稀土荧光材料y2O2S:Eu作为温度敏感材料,通过探测放大器和信号采集模块测量了敏感材料的荧光寿命,并由荧光寿命与温度的单调关系最终实现了温度的测量.采用油浴加热的方法进行温度实验,实验结果表明,温度传感系统在25~80℃实现了温度的测量,分辨率为0.5℃.In order to achieve the measurement of temperature in harsh environments,a fiber temperature sensor system based on the fluorescent lifetime was designed.415 nm LED was selected as the light source and a rare earth material Y2O2S: Eu was selected as the sensitive material.Finally,the fluorescence lifetime of sensitive material was measured by a probe amplifier and signal acquisition module and temperature measurements were realized due to the monotonic relationship between the fluorescence lifetime and temperature.Temperature experiments were carried out using an oil bath heating method,and the experimental results showed that: the temperature measurement can be realized in the range of 25 ~ 80 ℃ and the temperature sensor has an average resolution of 0.5 ℃
