中文摘要：

根据大型结构全尺度分布式高精度温度测量要求，组合应用布里渊时域分析（BOTDA）技术和光纤布拉格光栅（FBG）温度传感技术，设计了一种由BOTDA分析仪、FBG解调仪、共线传感探头和光开关组成的温度传感测试系统。实验测试证明，该系统具备大范围分布式温度测量与局部高精度温度测量功能，而且实现了BOTDA测温技术与FBG温度传感技术的有效互补，解决了测量范围和测量精度的矛盾问题，并且具有良好的温度重复性，达到了预期的设计要求。该共线测试技术方案在大规模结构温度监测中具有广阔的应用前景。

英文摘要：

For the requirements of the large-scale structure of the whole scale distributed high precision temperature measurement, BOTDA method and FBG temperature sensing technology are used to design a temperature sensing test system. The system is composed of BOTDA analyzers, FBG demodulator, collinear sensing probe and optical switches. The experimental test proves the system has function of testing large range of distributed temperature and local precision temperature. So the complementary of BOTDA temperature measurement technology and FBG temperature sensing tech- nology is achieved, the contradiction o{ measurement range and measurement precision is solved. What is more, the sys- tem has good temperature repeatability and the expected design requirements are achieved. The eollinear measurement technology program has broad application prospects in the large-scale structure of temperature monitoring.