| 一种线性测量电光相位延迟的光学电压传感器 |
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| 引用本文： | 马善军,谢楠.一种线性测量电光相位延迟的光学电压传感器[J].电力系统自动化,2015,39(14):157-161. |
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| 作者姓名： | 马善军 谢楠 |
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| 作者单位： | 1. 华北电力大学能源动力与机械工程学院,北京市,102206
2. 福州大学电气工程与自动化学院,福建省福州市,350108 |
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| 基金项目： | 径向检偏式光学电压互感器原理样机研制，编号：201301011，福建省电力公司 |
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| 摘 要： | 提出了一种采用晶体劈直接线性测量电光相位延迟的新型光学电压传感器,将晶体的电光相位延迟转换为光斑条纹的移动,通过测量光斑的位移量获得相位延迟。理论上分析推导了光斑位移量与晶体电光相位延迟角之间的线性关系,给出了光斑位移量的计算方法,并进行了实验验证。实验结果表明,新型光学电压传感器能够测量的相位延迟角达到320°,线性度良好。
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| 关 键 词： | 光学电压传感器 线性测量 晶体劈 相位延迟 |
| 收稿时间： | 2014/4/22 0:00:00 |
| 修稿时间： | 2015/6/19 0:00:00 |
Optical Voltage Sensor Based on Linear Measurement of Electro-optic Phase Retardation |
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| MA Shanjun and XIE Nan.Optical Voltage Sensor Based on Linear Measurement of Electro-optic Phase Retardation[J].Automation of Electric Power Systems,2015,39(14):157-161. |
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| Authors: | MA Shanjun and XIE Nan |
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| Affiliation: | School of Energy, Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China and College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350108, China |
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| Abstract: | A new type of optical voltage sensor based on the linear measurement of electro-optic phase retardation by using the crystal wedge is proposed. Which consists in having electro-optic phase retardation of crystal converted into the shift of light spot stripe,and phase retardation is acquired by measuring the shift of stripe. The linear relation between stripe shift and phase retardation is analyzed and derived, and the calculation method for shift of light spot stripe is provided. It is shown by experiment that the range of phase retardation measured, as an indication of linearity quality, has reached 320°. |
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| Keywords: | optical voltage sensor linear measurement crystal wedge phase retardation |
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