| 准互易光学电压传感器的电场计算与误差分析 |
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| 引用本文： | 冯秀娟,张春熹,于佳,李传生.准互易光学电压传感器的电场计算与误差分析[J].北京航空航天大学学报,2011,37(8):985-989. |
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| 作者姓名： | 冯秀娟 张春熹 于佳 李传生 |
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| 作者单位： | 北京航空航天大学 仪器科学与光电工程学院, 北京 100191 |
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| 摘 要： | 针对一种新型的具有准互易反射式光路结构的光学电压传感器,设计了基于锗酸铋(BGO,Bi4Ge3O12)晶体横向调制方式的高压探头.采用ANSYS有限元分析软件对所设计的高压探头进行电场计算,得到了探头内的电场及电势分布;讨论了探头内电场分布不均匀及干扰电场导致的测量误差.计算结果表明:标准条件下探头的最高可测电压不低于15 kV;电场分布不均匀导致光沿着晶体内不同路径传输时,电场强度对路径的积分结果即测量电压不同,影响传感器的稳定性和测量精度;探头内干扰电场导致0~5 kV范围内最大测量误差达1.2‰,这一测量误差对于2‰精度的电压传感器是不可忽略的.
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| 关 键 词： | 光学传感器 电压测量 有限元方法 电场 误差分析 |
| 收稿时间： | 2010-03-25 |
Calculation and error analysis of the electric field for a quasi-reciprocal optical voltage sensor |
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| Feng Xiujuan Zhang Chunxi Yu Jia Li Chuansheng.Calculation and error analysis of the electric field for a quasi-reciprocal optical voltage sensor[J].Journal of Beijing University of Aeronautics and Astronautics,2011,37(8):985-989. |
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| Authors: | Feng Xiujuan Zhang Chunxi Yu Jia Li Chuansheng |
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| Institution: | School of Instrument Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China |
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| Abstract: | The optical sensing element in transverse modulation configuration utilizing the Bi4Ge3O12(BGO) crystal was designed for a novel optical voltage sensor with quasi-reciprocal reflective optical circuit.The numerical calculation of electric field was performed using the finite element analysis based software ANSYS and the distributions of both electric field and electric potential were obtained.The influences of the non-uniformity and disturbances of electric field on the accuracy were also analyzed.The simul... |
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| Keywords: | optical sensors voltage measurement finite element method electric fields error analysis |
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