Features of the electric and magnetic fields produced by lightning discharges

뇌방전에 의해 발생된 전장 및 자장의 특성

  • 이복희 (인하대학교 차세대 고전압전력기술연구센터) ;
  • 이우철 (인하대학교 차세대 고전압전력기술연구센터) ;
  • 백영환 (인하대학교 차세대 고전압전력기술연구센터) ;
  • 조성철 (기초전력연구원)
  • Published : 2005.07.18

Abstract

This paper describes the features of electric and magnetic fields produced by lightning discharges. The measuring system consists of fast electric field sensor, crossed-loop magnetic field sensors, signal processing circuit, A/D converter and data acquisition equipment with a 12bit resolution and 10[MS/s] sampling rate. The frequency bandwidth and responsitivity of the electric field measuring system were 40[Hz]${\sim}$2.6 [MHz] and 2.08 (V/m/mV) and those of the magnetic field measuring system were 400[Hz]${\sim}$1[MHz] and 2.78[nT/mV], respectively. The electric and magnetic fields produced by lightning discharges were observed, and the features and parameters of the waveforms were analyzed.

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