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Sensors 2007, 7(12), 3058-3070; doi:10.3390/s7123058

Development of a Space-charge-sensing System

*  and
Gifu University of Japan
* Author to whom correspondence should be addressed.
Received: 21 October 2007 / Accepted: 30 November 2007 / Published: 4 December 2007
(This article belongs to the Special Issue Sensors for Disaster and Emergency Management Decision Making)
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A system for remotely measuring the distribution of air space charge in real time is developed. The system consists of a loudspeaker and an electric field antenna. By propagating a burst of directional sound wave from the speaker, a modulation in the space charge and, therefore, an electric field change at ground is produced. The distribution of the space charge density is derived from the E-field change which can be measured by the E- field antenna. The developed system has been confirmed by both laboratory and field experiments.
Keywords: Space charge; remote sensing; thundercloud; lightning. Space charge; remote sensing; thundercloud; lightning.
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Hazmi, A.; Takagi, N.; Wang, D.; Watanabe, T. Development of a Space-charge-sensing System. Sensors 2007, 7, 3058-3070.

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