| 基于渐进圆锥天线的ns前沿电磁脉冲电场传感器 |
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| 引用本文： | 郭飞,王绍飞,李秀广,刘世涛,孔旭,谢彦召.基于渐进圆锥天线的ns前沿电磁脉冲电场传感器[J].强激光与粒子束,2015,27(4):043201. |
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| 作者姓名： | 郭飞 王绍飞 李秀广 刘世涛 孔旭 谢彦召 |
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| 作者单位： | 1.西安交通大学 电气工程学院, 电力设备与电气绝缘国家重点实验室, 西安 71 0049; |
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| 摘 要： | 为了对ns级上升沿的电磁脉冲电场进行测量,研制了一种基于D-dot渐进圆锥天线的电场传感器。设计采用单极子渐进圆锥天线作为电场传感器的接收天线,并通过建模仿真验证了该天线的性能;通过电光转换模块将天线感应的电信号转换为光强度信号并通过光纤传输;利用软件积分对传感器测得的电场微分信号进行处理;通过测试试验验证了传感器的性能。研究表明,所研制的电场传感器能够测量上升沿大于1.5ns的脉冲电场,具有体积小、线性度高的优点。
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| 关 键 词： | 渐进圆锥天线 ns上升沿 电磁脉冲 电场 传感器 |
| 收稿时间： | 2014-09-07 |
Development of nanosecond rise time E-field sensor based on asymptotic conical antenna |
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| Affiliation: | 1.State Key Laboratory of Electrical Insulation and Power Equipment,School of Electrical Engineering,Xi’an Jiaotong University,Xi’an 710049,China;2.Electric Power Research Institute of Ningxia Electric Power Company of State Grid Corporation of China,Yinchuan 750001,China |
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| Abstract: | In order to measure the electric field of electromagnetic pulse(EMP) with nanosecond rise time, a kind of broadband E-field sensor based on asymptotic conical antenna is proposed. The performance of the antenna is verified by modeling and simulation. An optical transmitter is designed to realize the electro-optical conversion and a fiber is used to transmit the signal. The output voltage of the sensor is integrated by Matlab. The performance of the sensor is tested by experiment. Research results show that this kind of measurement system has the characteristic of small size, good linearity, high noise immunity and wide-band response and it can be used to measure the E-field of EMP with nanosecond rise time. The development of the E-field sensor is of great significance for the measurement of EMP and further research on the characteristics and protection of EMP. |
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