光纤光栅传感器的无胶化封装及蠕变规律研究

Research on creep law of packaging machine without glue of optical fiber grating sensor

为了进一步提高光纤光栅传感器在沥青混凝土路面结构监测应用的长期有效性,以沥青混凝土作为封装材料,在封装过程中以缠绕固定代替高分子粘结剂,使得传感器无胶化,并对光纤光栅传感器蠕变规律进行试验研究,得出光纤光栅传感器蠕变随时间变化规律,提出了避免蠕变现象对监测结果不利影响的建议。

In order to further improve the long-term effectiveness of optical fiber grating sensor in asphalt concrete structure monitoring applica- tion, taking the asphalt concrete as the packaging materials, in the encapsulation process by winding fixing instead of polymer binder, made the sensor without glue, and made test research on the creep law of optical fiber grating sensor, gained the law of optical fiber grating sensor changed with time, put forward the suggestion to avoid the creep had adverse influence to monitoring results.