摘要
根据全光纤电流互感器(FOCT)的光路结构及其工作原理,分析了λ/4波片的制作效果对FOCT的影响,研究了λ/4波片的制作工艺,得出了影响波片制作效果的主要因素。通过选择合适的材料和工艺方法,获得了性能优异的全光纤λ/4波片。试验结果表明:该方法制作的波片提高了FOCT的性能,使其满足了0.2 S级测量用电子式电流互感器的准确度要求。
The topology and operational principle of fiber optic current transducer （FOCT） were introduced, and the λ/4 wave plate affecting the performance of FOCT were analyzed. The fabrication of λ/4 wave plate was studied and several factors that affect the fabrication were introduced, according to the analysis, the improved λ/4 wave plate that meet the claims is manufactured by using suitable material and method. The experimental results show that the FOCT＇s measurement precision is improved by using the improved λ/4 wave plate, and the FOCT can satisfy the accuracy requirements of the 0.2S class can be satisfied by the FOCT, meeting the requirements of digital substation.
出处
《红外与激光工程》
EI
CSCD
北大核心
2013年第8期2167-2172,共6页
Infrared and Laser Engineering
基金
中国物理研究院科学技术发展基金(2009B0201013)
关键词
λ
4波片
FOCT
偏振消光比
偏振度
λ／4wave plate
FOCT
polarization extinction ratio
degree of polarization
