Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

Measurement and Statistical Analysis of Magnetic Fields Produced by Lightning Return Strokes

낙뢰에 의하여 발생하는 자장의 계측과 통계적 분석

  • Lee, Bok-Hee (Dept. of Electrical Engineering, College of Engineering, Inha University) ;
  • Park, Sung-Yeol (Dept. of Electrical Engineering, College of Engineering, Inha University)
  • 이복희 (인하대학교 전기공학과) ;
  • 박성열 (인하대학교 전기공학과)
  • Published : 1997.11.29
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, magnetic fields produced by lightning return strokes were investigated and analyzed Magnetic field and its derivatives were measured with two crossed loop antennas. Frequency bandwidths of the magnetic field and its derivative measuring systems are in the range of $270\;[Hz]\;{\sim}\;2.3\;[MHz]$ and $450\;[Hz]\;{\sim}\;2.5\;[MHz]$, and their response sensitivity are 128 [mV/${\mu}T$] and 4.12 [mV/nT//${\mu}s$], respectively. Signals are digitized every 500 [ns], data are automatically recorded by transient signal analyzer(Nicolet Pro. 30) having the resolution of 12 - bit and the length of 5 kilowords, and they are registered at personal computer. Magnetic field and its derivative waveforms associated with lightning return strokes were observed since the summer of 1997 at Inha University in Inchon.

Keywords