LIGHTNING-STRIKE ELECTRIC CHARGE ESTIMATION SYSTEM AND METHOD

WIPO Patent Application WO/2014/077337

A1

A magnetic field measurement means measures the magnetic field generated by a lightning-strike in a frequency band that includes frequencies of 200 Hz or less. An electric charge calculation means determines the electric current waveform of the lightning-strike on the basis of the waveform of the magnetic field measured by the magnetic field measurement means, and integrates the electric current waveform to determine the electric charge.

HONMA NORIYASU (JP)
HONGO YASUJI (JP)
TAKAHASHI YUKIHIRO (JP)
SATO MITSUTERU (JP)
TSUCHIYA FUMINORI (JP)
TSURUSHIMA DAIKI (JP)

PCT/JP2013/080836

May 22, 2014

November 14, 2013

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TOHOKU ELECTRIC POWER CO (JP)
UNIV HOKKAIDO NAT UNIV CORP (JP)
UNIV TOHOKU (JP)

G01W1/16

JP2006275845A	2006-10-12
JPH07151866A	1995-06-16
JP2006194643A	2006-07-27

CUMMER A.: "UNUSUALLY INTENSE CONTINUING CURRENT IN LIGHTNING PRODUCES DELAYED MESOSPHERIC BBREAKDOWN", GEOPHYSICAL RESEARCH LETTERS, vol. 28, no. 3, 1 February 2001 (2001-02-01), pages 495 - 498, XP055254486
HIRONAO KAWAMURA: "OBSERVATION OF WINTER LIGHTNING AND ITS CHARACHTERISTICS IN THE HOKURIKU AREA WITH UTILIZING ELECTROMAGNETIC WAVE 1 SEARCHING FOR NATURE SECRETS IN THE HOKURIKU DISTINCT ELECTRONICS WAVES AS A TOOL FOR DISCOVERY", JOURNAL OF THE INSTITUTE OF ELECTRONICS INFORMATION AND COMMUNICATION, vol. 93, no. 10, 1 October 2010 (2010-10-01), pages 828 - 830, XP008179239

KIMURA MITSURU (JP)
Mitsuru Kimura (JP)

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