Development of One-Dimensional Norm Detector for Nanosecond-Level Transient Electric Field Measurement
Development of One-Dimensional Norm Detector for Nanosecond-Level Transient Electric Field Measurement
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DOI：
10.1109/temc.2016.2645943
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发表时间：
2017-08-01
影响因子：
2.1
通讯作者：
Jin, Yin-Bin
中科院分区：
文献类型：
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作者：
Kong, Xu;Xie, Yan-Zhao;Jin, Yin-Bin
基于数字测量技术，研制了一种用于纳秒级瞬态电场测量的一维范数检测器。与传统的测量方法相比，它有两个主要优点。首先，测量信号可以存储，不需要传输线。因此，它可以检测在密封腔中耦合的电场，例如在电磁兼容性测试下的飞机或车辆的驾驶舱。其次，信号处理软件可以方便快捷地获取被测波形的常用范数。因此，可以提高测量实验的效率。本文介绍了范数检测器的具体实现及其信号处理软件的设计。范数检测器的最大采样率为2GSPS，存储深度为8 kB。通过调整天线的高度，测量范围为0.1 ~ 55 kV/m，工作带宽为1 kHz ~ 460 MHz。通过测量方波和实际电磁脉冲波形，对标准检波器和传统的光纤连接电场传感器进行了测试和比较。此外，通过简单的结构修改，范数检测器可以测量磁场、耦合电流或高压脉冲。
This paper develops a one-dimensional norm detector for nanosecond-level transient electric field (E-field) measurement based on the digital measurement technology. It has two main advantages over the traditional measurement method. First, the measured signals can be stored and no transmission line is needed. Hence, it can detect the E-field coupled in hermetically sealed cavities, such as the cockpit of an aircraft or a vehicle under electromagnetic compatibility test. Second, commonly used norms of the measured waveform can be acquired by the signal processing software quickly and conveniently. Therefore, the efficiency of the measurement experiment can be improved. This paper describes the detailed realization of the norm detector and the design of its signal processing software. The maximum sampling rate of the norms detector is 2 GSPS and the memory depth is 8 kB. Via adjusting the height of the antenna, the measuring range can be 0.1-55 kV/m and the estimated operation bandwidth is 1 kHz-460 MHz. The norm detector is tested and compared with the traditional E-field sensor with the fiber-optic link by measuring the square waveform and the actual electromagnetic pulse waveform. Furthermore, the norm detector can measure magnetic field, coupled current or high-voltage pulse by a simple structural modification.