Re: REALLY Tiny Induction furnace (was: Tiny Induction...)

Daniel Haude wrote:
>
> ["Followup-To:" header set to sci.electronics.design.]
> On Sun, 24 Apr 2005 16:34:48 -0400,
> Mike Monett <nospam@xxxxxxxx> wrote
> in Msg. <426C02E8.6073@xxxxxxxx>
>
> > Is there any reason to go to the trouble and complexity?
>
> Yes. It has been given in my original post but got snipped out of the
> quotes.
>
> For higher power we often use electron bombardment, and we might take that
> route in this instance as well if inductive heating turns out to be
> impractical.
>
> --Daniel

OK, I found your original post in google:

"Induction heating (to about 300 C) would be elegant because it would
permit easy transfer of the crucible into and out of the chamber wihout
having to bother about electrical or thermal contacts for resistive
heating."

That makes sense - trying to get reliable contacts at high temperature
might be a problem.

However, your temperature is quite reasonable. How about a small heating
coil around the crucible?

And the next problem - regardless of the heating method used, how do you
monitor the temperature in order to control the heater?

Mike Monett
.

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