摘要
分析了影响OCT温度稳定性的主要因素,综述了利用入射光偏振态分析和法拉第效应的非互易特性两类补偿方法的研究现状。针对这两种方法存在的局限性,提出了采用永久磁体作为参考源应用于光学电流互感器中,对随环境因素改变的材料Verdet常数及线性双折射进行实时补偿的基于比较测量原理的新的补偿方法,理论分析和相关的实验结果验证了该方法的可行性。
The main factors on temperature stability of optical current transformer were analyzed.The research progress of the two compensation methods(polarization analysis of incident light and the nonreciprocity of Faraday effect)was briefly summarized.Comparative measurement using permanent magnet as reference source applied in Optical Current Transformer was proposed to overcome the deficiency of the above ways.The influence of material's Verdet constant and linear birefringence caused by varying environmental factors could to compensated.Theory analysis of the method and related experiment results have proven its feasibility.
出处
《仪表技术与传感器》
CSCD
北大核心
2004年第4期32-33,39,共3页
Instrument Technique and Sensor
基金
国家自然科学基金资助项目(50377011)
