电力系统自动化Issue(3)：166-170,5.DOI:10.7500/AEPS20130410013
光学电压互感器偏光干涉测量模式（二）基于会聚偏光干涉原理的光学电压互感器
Polarization Interference Measuring Mode of Optical Voltage Transducer Part Two Optical Voltage Transducer Based on Convergent Polarized Light Interference
摘要
Abstract
The adoption of polarized light interference demodulation for the traditional optical voltage transducer to detect light intensity to achieve the voltage measurement has led to a small measurement range and significant influence by temperature drift and crystal”s additional birefringence.This paper proposes a new type of optical voltage transducer based on convergent polarized light interference,with the crystal electro-optical phase converted to the spot image”s rotation angle.This new methodology is independent of light intensity,has wide measurement range from 0°to 180°,and its voltage measurement range is not restricted by crystal half-wave voltage.A detailed analysis is made on the theory of this new transducer and the method of how to read the spot”s rotation angle is given.The actual measurement results are also presented to show the good linearity of the new transducer”s sensing angle up to 320°.关键词
会聚偏光/光学电压互感器/电光相位延迟/电光晶体/线性测量Key words
convergent polarized light/optical voltage transducer/electro-optic phase delay/electro-optic crystal/linear measurement引用本文复制引用
黄荔生,马善军,许灿华,徐启峰..光学电压互感器偏光干涉测量模式（二）基于会聚偏光干涉原理的光学电压互感器[J].电力系统自动化,2014,(3):166-170,5.基金项目
国家自然科学基金资助项目(51177016)@@@@This work is supported by National Natural Science Foundation of China(No.51177016) （51177016）
