针对航天行业太空环境下对卫星内部温度监测的需求,研制了一种直接测量卫星内部温度的光纤光栅温度传感器.通过对传感器的结构进行了优化设计,选择一种新型的封装工艺,解决了温度、应变交叉敏感问题.选取相同封装条件的3个光纤光栅温度传感器进行温度标定.结果表明,在0～60 ℃范围内,光纤光栅温度传感器灵敏度分别为9. 26pm/℃、9. 60pm/℃、9. 47pm/℃,精度为1pm,温度分辨率达到了0. 1 ℃,线性度均达到0. 998以上,具有良好的重复性与一致性,可应用于卫星内部温度的实时监测.%In view of the requirement of satellite internal temperature monitoring in space environment,a FBG(fiber Bragg grating)temperature sensor is developed to directly measure the internal temperature of the satellite. By optimi-zing the structure of the sensor,a new type of packaging technology is chosen to solve the problem of temperature and strain cross sensitivity. The temperature calibrations of 3 fiber Bragg grating temperature sensors with the same pack-age condition is selected. In 0～60 ℃range,the results show that the sensitivities of FBG temperature sensors are re-spectively 9. 26 pm/℃,9. 60 pm/℃,9. 47 pm/℃. The accuracy reaches 1 pm,temperature resolution reaches 0. 1℃,linearity reaches more than 0. 998,which has good repeatability and consistency,and can be applied to real-time monitoring of the satellite internal temperature.
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