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首页> 外文会议>2016 Selected Issues of Electrical Engineering and Electronics >Calibration of electric field antennae operating in the ELF-MF frequency range at the lightning research station in Rzeszow
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Calibration of electric field antennae operating in the ELF-MF frequency range at the lightning research station in Rzeszow

机译：在热舒夫的闪电研究站，对在ELF-MF频率范围内工作的电场天线进行校准

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摘要

The purpose of this paper is to find calibration coefficients for antennae operating at the Lightning Research Station in Rzeszow. Two types of antennae used for acquisition of lightning electric field were examined. The first sensor was the ELF electric field mill registering slow electric field variations originated in the thunderstorm cloud. The second antenna was designed to recording relatively fast ELF-MF components of lightning as return stroke, continuing current and preliminary breakdown. In order to create uniform distribution of electric field during the calibration a dedicated setup was made in the high voltage laboratory. Different generators were used to create adequate field waveforms. Due to significant difference in amplification and bandwidth for each sensor. Devices were calibrated together with 10 meter cables dedicated for wiring signal from antenna to the A/D converter. Estimated calibration coefficients were 47.5 mV/kV and -334 mV/kV for the slow and fast electric field sensor, respectively. Small variation of those coefficients was observed when the signal transmission line was terminated by the characteristic impedance. Cable length does not affect the measured signals in this configuration.
机译：本文的目的是找到在热舒夫的闪电研究站工作的天线的校准系数。研究了用于捕获雷电电场的两种天线。第一个传感器是ELF电场磨，记录了源自雷暴云的缓慢电场变化。第二根天线被设计为记录相对快速的闪电ELF-MF分量，如回程，持续电流和初步击穿。为了在校准过程中产生均匀的电场分布，高压实验室专门进行了设置。使用了不同的发生器来创建足够的场波形。由于每个传感器的放大率和带宽差异很大。设备已与10米电缆一起进行了校准，这些电缆专用于将信号从天线连接到A / D转换器。慢速和快速电场传感器的估计校准系数分别为47.5 mV / kV和-334 mV / kV。当信号传输线被特征阻抗终止时，观察到那些系数的微小变化。在此配置中，电缆长度不会影响测量的信号。

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