摘要
提出了一种基于保偏光纤的应力传感及测试系统,讨论了保偏光纤在外部应力作用理偏振态的变化情况。从理论上分析了该传感系统的工作原理,搭建了实验系统,对光偏振度变化情况进行检测,采用DSP系统对实验结果进行实时采集处理。通过对外处理结果进行分析,论证了保偏光纤应用于传感系统的有效性。
With continual development of fiber sensor technology, optical fiber has been applied in more and more fields such as architecture, bridge, oil well. This paper proposed a strain-sensor system based on polarization-maintaining optical fiber （PMF） and its corresponding testing system. It studied the alteration of polarity of fiber under the effect of external strain, analyzed the operating principle theoretically, and studied the testing and processing of the alteration of optical polarity. The expected experiment result was gotten and analyzed systematically.
出处
《仪表技术与传感器》
CSCD
北大核心
2008年第8期10-12,共3页
Instrument Technique and Sensor
关键词
光纤传感器
保偏光纤
双折射
偏振态
optical fiber sensor
polarization-maintaining optical fiber （PMF）
birefringence
polarity
