Title :
New development in lightning-counter design
Author :
Kreielsheimer, K.S. ; Lodge-Osborn, D.
Author_Institution :
University of Auckland, Geophysics section of the Department of Physics, Auckland, New Zealand
fDate :
1/1/1971 12:00:00 AM
Abstract :
Counters developed in Auckland use a combination of the electrostatic and radiative components of the electromagnetic field created by a lightning discharge. By combining the output of a CIGRÉ-type extra-low-frequency circuit with the lightning noise radiated in the 10 MHz region, counters have been designed which will respond to ground flashes only, or discriminate between ground and cloud flashes, and at the same time resolve a multiple ground flash into its individual strokes. In all these applications, the gap in the high-frequency noise occurring after a ground stroke has been utilised in the discrimination between the different types of lightning discharge.
Keywords :
counters; geophysical equipment; lightning; ELF circuits for lightning noise; HF noise gap after ground stroke; cloud flashes due to lightning; counters for 10 MHz region; different types of lightning discharges; discriminating counters; discrimination of different lightning discharges; electromagnetic fields in lightning discharges; electrostatic and radiative components for counters; ground flashes due to lightning; lightning discharge counters; noise radiation in 10 MHz region; resolution of multiple ground flashes;
Journal_Title :
Electrical Engineers, Proceedings of the Institution of
DOI :
10.1049/piee.1971.0010
