Doug White wrote:

Keywords:
In article , Jeff Wisnia wrote:


Bill Janssen wrote:



My scrap yard friend had/has a meter with two probes that when applied
to an unknown metal will, from the needle defection, tell what the
metal might be.
I assume it measures the thermoelectric effect The meter is seriously
damaged and is
probably not repairable

Their meter is now broken and they asked me to repair or find another.
The broken one was manufactured by Chemet Products of San Francisco.
That company seems to no longer exist.

So, does anyone know of a similar meter. I don't even know how to search
on Google for such a device. Mainly I don't know what to call it.

Bill K7NOM


Hey, isn't this the kind of function you were talking about, the text
says, "Sorts alloy scrap, verifies parts in receiving, inspection for
proper alloys."

http://tinyurl.com/8bh4m




This link seems to be busted. I pasted the full link below, but it will
need some splicing:

http://www.acromag.com/parts.
cfm?Model_ID=1&Product_Function_ID=19&Category_ID =11&Group_ID=2



Hmm, it appeared busted to you? I wonder if that's got anything to do
with something I read in the business section of the Boston Globe within
the last couple of days about a couple of the upper eschelon internet
"backbone" data carriers who are having some sort of hissy catfight?
The article said that could possibly disrupt internet communications
between parts of the web in different geographic areas.

I checked that tinyurl before I posted it, and it worked. I always do
that, because of my long standing anality about hating to be cought in a
mistake by anyone other than myself. :-)

I checked just now and that tinyurl still worked fine from here in Red
Sox country, where we're in mourning for the next week.



Interesting looking gadget, but not cheap.



That's what I thought too. Looking at its two replacement "probes" (at
$500 EACH) I gather that one is a Peltier thermoelectrically cooled
plate and the other one is a heated probe. I'm assuming that's done to
magnify the thermoelectric potential effect, to make it easier to
distinguish between different alloys in the same metal "family". Anyone
here able to confirm my speculation?

Jeff

--
Jeffry Wisnia

(W1BSV + Brass Rat '57 EE)

"Truth exists; only falsehood has to be invented."