Electricity: measuring and testing – Testing potential in specific environment – Voltage probe
Patent
1997-11-26
1999-11-02
Do, Diep N.
Electricity: measuring and testing
Testing potential in specific environment
Voltage probe
324457, 340601, 702 4, G01R 3102
Patent
active
059777621
ABSTRACT:
Apparatus and methodology for detection of lightning. The invention includes an antenna and amplifier for receiving the electrostatic and/or electromagnetic discharges of lightning and electrical noise and outputs an analog electrical signal representative of the discharge. The analog signal is applied to a threshold detection circuitry whose output is activated when the input signal rises above a predetermined level. The output of the threshold circuitry is a series of pulses of varying length. A computer or other programmable device is connected to the output of the threshold circuitry and opens an event window when the first pulse is received and determines the number of pulses received and the total duration of the pulses during the event window. The number and total duration of the pulses is compared to stored pulse signatures of lightning discharges and man made electrical noise. If the pulse signature correlates with that of lightning an alert signal is generated, if the signature correlates with that of man made noise no alert is generated and the event window is reset. The generation of a first alert may be used to change the length of the event window or other parameters to change sensitivity and/or to generate various levels of alerts.
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Murtha, Jr. John B.
Skinner, II William H.
Botjer William L.
Do Diep N.
Mirage Lighting Technology Ltd
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