Storm warning method and apparatus

Electricity: measuring and testing – Testing potential in specific environment – Voltage probe

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324 77R, G01N 3102

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046723056

ABSTRACT:
Electric (E) and magnetic (H) field components of a lightning stroke are separately received in order to determine and display the location of regions of recently occuring lightning activity. Direction is determined by operating upon electrical signals associated with both the E and H field components. Range is determined by measuring the magnitude of the H field at two different frequencies. The range is then computed as a function of the ratio of the magnitude of the H field at a first frequency to the magnitude of the H field at a second frequency.

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