From: Bert Hickman
Date: Mon, 14 Oct 2002 06:46:22 -0500
Subject: Re: [TSSP] Top Voltage
Paul, Terry, I agree with Paul - it'd be better to add grounded aluminum foil to the ceiling to eliminate any variability of Q versus weather, to get a more defined e-field (at least pre-breakout), and to remove any potential dielectric/space charge effects from the ceiling. It's tough enough trying to deal with the effects of space charge in the air... Best regards, -- Bert -- -- Bert Hickman Stoneridge Engineering "Electromagically" (TM) Shrunken Coins! http://www.teslamania.com Paul wrote: >>Should I put grounded foil on it?? But I think >>that raises the fields even more to further go in the >>wrong direction... > > > No, it raises the field strength, so that breakout occurs > at a lower voltage, more towards the predicted value which > assumes the ceiling is a perfect conductor. > > But as I mentioned earlier, removing ceiling and walls > altogether from the model only makes a 20% difference > so I wouldn't expect much improvement, not as much as > I'd hoped for. > > Unless...unless the underside of the ceiling is accumulating > a charge that is holding off breakout. Anyone got any > thoughts? Is it worth Terry attaching a few square yards > of grounded foil to the ceiling? I don't think it'll make > much difference unless something funny is happening by way > of the insulated surface of the ceiling collecting charge. > > I suppose the ceiling has to be the first thing to look > at, since it's the closest thing to the sphere terminal. > -- > Paul Nicholson, > -- >
Maintainer Paul Nicholson, paul@abelian.demon.co.uk.