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- Title
Rocket-triggered lightning current waveforms in winter and investigation of extra-fast current change.
- Authors
Yoda, Masayuki; Miyachi, Iwao
- Abstract
Since 1986, the authors have been taking part in triggered lightning experiments in winter, at Okushishiku, Ishikawa, for the purpose of observing the entire lightning current waveforms with coaxial shunt resistors and an electro-optical measuring system. Extra-fast current changes of the order of 1,000 kA/μs were recognized by sharp pulse records superposed on the positive current waveform obtained by a shunt resistor of relatively high residual inductance. This was not the case with a resistor of lower inductance. Furthermore, a positive lightning current waveform which looks like the composite result of bi-polar discharges has been observed by an advanced measuring system of high performance. This paper deals with these current-related topics of triggered lightning discharges, which will be analyzed hereafter in detail. © 1999 Scripta Technica, Electr Eng Jpn, 128(2): 18–23, 1999
- Subjects
ELECTRIC currents; LIGHTNING; ELECTRIC resistors; COAXIAL cables
- Publication
Electrical Engineering in Japan, 1999, Vol 128, Issue 2, p18
- ISSN
0424-7760
- Publication type
Article
- DOI
10.1002/(SICI)1520-6416(19990730)128:2<18::AID-EEJ3>3.0.CO;2-A