On 1/4/13 1:51 PM, Simon wrote:
What if you had an enclosure around the output toroid that could vary the temperature in a controlled manner and had somekind of grounded metal plate mounted on that enclosure so that the sparks would be attracted too. Would there be a sensor sensitive enough to measure the difference in time it takes the sparks to hit vs temperature? I think in a plasma globe theres a capacitative relationship with the glass so maybe in a standard tesla coil an enclosure around the toroid may have more adverse effects other than lowering the resonant frequency slightly. Any thoughts?
The temperature will affect the resistance of the windings, but the change over a temperature range near room temp won't be all that big.The temperature will also affect the density of the air/gas surrounding the coil, which will (very slightly) affect the permittivity and will also change the breakdown voltage (in proportion to absolute temperature, at least where Ideal Gas Law holds).
Would there be no sparks coming out of the toroid at absolute 0?
On Jan 4, 2013, at 1:55 PM, Jim Lux <jimlux@xxxxxxxxxxxxx> wrote:On 1/4/13 11:03 AM, plasticanvil wrote:Hi I'm looking to do a science project on a Tesla coil i have to have a variable and i was thinking that my variable could be the temperature affecting the Tesla coil if you know anything about this i would love to know.Not noticeably.. I would pick some design variable of the Tesla Coil... gap distance, tuning point, etc. Are you in middle or high school? that helps us suggest something with appropriate complexity. What sort of test equipment (if any) do you have access to? _______________________________________________ Tesla mailing list Tesla@xxxxxxxxxx http://www.pupman.com/mailman/listinfo/tesla_______________________________________________ Tesla mailing list Tesla@xxxxxxxxxx http://www.pupman.com/mailman/listinfo/tesla
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