May 12th, 2010, 1:15 pm
QuoteOriginally posted by: frenchXA thing that I'm seriously searching at the moment.A device to detect lightning (cloud to ground stroke) in a thunderstorm before their occurrence. I'm searching to a device to scan the electric field of a cloud with the best resolution possible in position (10m would be heaven, i expect more 1km).If you have any idea, you are welcome.Cool! Two off-the-top-of-my-head ideas:1. Leyden jar + balloon or aircraft: Start with a capacitor at ground state, insulate one side of the capacitor and attach the other side to a nice acceptor of atmospheric charges (aluminized skin or sharp little needles). Fly through the cloud and measure the voltage across the capacitor (corrected for any leakage).2. UUUULF radio: Detect the movement of charges from ultra-ultra-ultra-low frequency radio waves. Integrate the signal to estimate accumulated charge or charge location. EDIT: Design #1 would provide very high-resolution data on the 1-D flight transect. Design #2 could collect 2-D, possible 3-D scans but might require lots of very large antennas.
Last edited by
Traden4Alpha on May 11th, 2010, 10:00 pm, edited 1 time in total.