摘要
保偏膜的反射相移是影响光学电流互感器性能的重要参量,它的存在会明显降低系统的灵敏度和稳定性.文章以琼斯矩阵为数学工具,利用理论分析和实验方法研究了单层保偏反射膜反射相移的温度特性,结果表明,当温度从5.3℃变化到39℃时,反射膜的反射相移将会改变.因此,当系统所处环境温度发生改变时,会引起反射相移的改变,从而影响了保偏膜光学电流互感器灵敏度和稳定性,这意味着在实际系统中,有必要采取相应的技术措施来控制光学玻璃电流传感头的温度变化范围,以保证其达到国家标准所要求的准确度.
An important aspect of optical current sensors is the reflection-induced retardance of polarization-preserving reflecting medium layers. The temperature features of the reflection-induced retardance of a polarizationpreserving reflecting medium layer were theoretically analyzed using the Jones matrix as a mathematical tool. The results show that the reflection-induced retardance changes in a certain range with the temperature varying from 5.3 ℃ to 39℃. Therefore, it is necessary to take corresponding technical measures to control the temperature changing range of the optical glass current sensing head to ensure that the variation of its criteria factor meets industry requirements.
出处
《哈尔滨工程大学学报》
EI
CAS
CSCD
北大核心
2006年第2期305-307,共3页
Journal of Harbin Engineering University
关键词
光学电流传感器
反射相移
温度特性
optical current sensor
reflection-induced retardance
temperature features
