Re: [ATM] Expanding Question

[Bill Prewitt <bprewitt@neo.rr.com>]

Anthony Stillman wrote:
> 
> Now here's the question.  I can't be sure of the exact alloys I have and
> consequently their alphas.  So if I solder these two metals together and
> their alphas are known to say +- 1 percent and differ in the worst way, how
> bad is it going to be?  I don't expect anyone to figure this out for me,
> though that would be nice, what I am hoping for is a description of how to
> figure it out, and/or what software to use,  and what else I need know
> about the metals and the physical arrangement to do it.  Anyone?
> 
> Anthony
> 

Solder two thin strips together and you have a thermostat element.
You could use a dial indicator to measure displacement at various 
temperatures with your test alloys to pick the best match.

         Bill Prewitt
     www.astrocaver.com

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