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Tunable optical-path correlator for distributed strain or temperature-sensing application

机译:用于分布式应变或温度传感应用的可调光路相关器

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摘要

Based on a cavity-length tunable fiber-loop resonator, a multibeam optical path difference is generated. It can be used to match and correlate the reflective signals from the partial reflective ends of each sensing fiber gauge. The correlation signals correspond to the sensing gauge lengths, and the shift of the correlation peak is related with the fiber sensing gauge elongation caused by strain or temperature. Therefore, it can be used to measure distributed strain or deformation for smart structural monitoring.
机译:基于腔长可调光纤环路谐振器,产生了多光束光程差。它可用于匹配和关联每个传感光纤量规的部分反射端的反射信号。相关信号对应于传感线规的长度,相关峰的偏移与由应变或温度引起的光纤传感线的伸长有关。因此,它可用于测量分布的应变或变形,以进行智能的结构监测。

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