电力系统自动化2017，Vol.41Issue(3)：135-140,6.DOI:10.7500/AEPS20160515017
实现线性测量的光学电压传感器设计
Optical Voltage Sensor Design for Linear Measurement
摘要
Abstract
An optical voltage sensor for voltage linear measurement using radial polarization grating is designed.The electro optic phase delay in a crystal is converted into a synchronous rotation of a ring-shaped facula.The ring-shaped facula is changed into a stripe facula by an image converter,and then the applied voltage can be measured by positioning the dark stripe center with an image collecting system.The linear relation between the electro optic phase delay and the position of the dark stripe center is proved using Jones matrix.The calculation method and the experimental verification of the bismuth germanium oxide (BGO) crystal and lithium niobate (LN) crystal are given.The results show that the measurement mode of the designed optical voltage sensor is irrelevant to the light intensity,and the measurable range of the electro-optic phase delay reaches 172°,while the linear measurement for voltage is realized with a measurement error less than 0.5％.关键词
光学电压传感器/线性测量/偏振光栅/电光相位延迟Key words
optical voltage sensor (OVS)/linear measurement/polarization grating/electro-optic phase delay引用本文复制引用
谭巧,徐启峰,谢楠..实现线性测量的光学电压传感器设计[J].电力系统自动化,2017,41(3):135-140,6.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）
