Got a thermocouple probe here, but still need the "back end".  Even if I =
built=20
a circuit for it, I'd still need to calibrate that.  Chicken and egg stor=
y.

Cheers,
-Neil.



On Saturday 19 July 2003 09:17, John Ferrell scribbled:
> Don't overlook medical thermometers for the area around 100 degrees F.
> Also, back in the dark ages we used thermocouple wire, a reference junc=
tion
> in an ice water bath and read it with a balanced bridge (no current dra=
w!)
> I am inclined to believe that a good DVM and a piece of Chromel-Alumel =
or
> Iron -constantan wire could be used for your purposes. I have no clue a=
s to
> where to find the wire today.
>
>
> John Ferrell
> 6241 Phillippi Rd
> Julian NC 27283
> Phone: (336)685-9606
> johnferrell@earthlink.net
> Dixie Competition Products
> NSRCA 479 AMA 4190  W8CCW
> "My Competition is Not My Enemy"
>
> ----- Original Message -----
> From: "Picdude" <picdude@NARWANI.ORG>
> To: <PICLIST@MITVMA.MIT.EDU>
> Sent: Saturday, July 19, 2003 1:37 AM
> Subject: [OT]: Measuring temperature...
>
>
> Any of you folks have a way to measure temperature semi-accurately w/o
> expensive thermometers?  Within a few degrees would be nice, and in the
> range
> of 0 to 300 deg F.  I'm trying to test the calibration of a temp sensor=
 for
> my car.
>
> I can use ice and hot water to get the 32- and 212-deg F points.  But i=
s
> there
> a way to get 1 or 2 points between that, and a couple other points up t=
o
> about 300 deg F?  Is there any other liquid I could boil that has some
> known boiling point perhaps?
>
> Cheers,
> -Neil.

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