光纤环时效处理的有效性分析

Effectiveness Analysis of Aging Treatment of Optical Fiber Ring

作为光纤陀螺的核心敏感元件,光纤环质量的优劣直接决定了光纤陀螺的精度。而目前光纤环制作工艺仍处于不断完善阶段。针对光纤环成环过程的温度时效工艺的处理效果进行了重点实验分析,实验结果充分显示了温度时效处理对当前光纤线圈的应力释放效果。同时,还讨论了振动时效处理方法释放光纤环残余应力的作用效果,结果表明,该方法在释放残余应力方面更为有效。

As the core sensing element of fiber optic gyro （FOG）, the quality of optical fiber ring directly determines the precision of FOG. At present, the manufacturing process of the fiber ring is still in the perfecting stage. In this paper, the effect of temperature aging on optical fiber ring is analyzed by detecting the change of the stress state of the optical fiber ring before and after temperature aging. The results show that, the current temperature aging method has little effect on releasing the residual stress of optical fiber ring. By the time, the effect of vibratory stress relief （VSR） method is analysed, and the VSR is more effective than temperature aging treatment.