Re: Arc and heat.

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: Yurtle Turtle <yurtle_t-at-yahoo-dot-com> 

Or buy a LC aquarium thermometer. They are cheap and
surface applied.

Adam

--- Tesla list <tesla-at-pupman-dot-com> wrote:
 > Original poster: "Jim Lux" <jimlux-at-earthlink-dot-net>
 >
 >  > Any way I started playing with it with no water
 > in it.  I let it run for
 >  > about 2 minutes and found the copper pipe to be
 > much hotter than the
 >  > loop.  I figured this was due to the loop having
 > more thermal mass.  So I
 >  > turned it on and played with the spark for about
 > 20 minutes.  Then I found
 >  > the loop side had heated up but still not nearly
 > as much as the copper
 >  > pipe.  Got an infrared thermometer on order so
 > it's the touch it and see
 > if
 >  > it leaves a mark method for now. J
 >
 > Get one of those inexpensive "instant read" meat
 > thermometers at the
 > supermarket.  Turn it on, touch the probe to the
 > surface, and you get the
 > temperature in a matter of seconds.
 >
 > or, if you want to measure temp while it's running,
 > get a regular mechanical
 > meat or barbecue thermometer (with the dial) and
 > figure out how to attach
 > it.  In both cases, the "sensitive tip" is what you
 > need to attach (high
 > temp epoxy? A small hole that you press fit into?)
 >
 > BTW, those IR thermometers assume a particular
 > emissivity of the thing
 > they're looking at so make sure you look it up for
 > your copper and apply the
 > right cal factor.
 >
 >  >