Thread: How it works.
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Unread 03-05-2003, 08:27 PM   #9
BillA
CoolingWorks Tech Guy
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Join Date: Dec 2000
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Quote:
Originally posted by deeppow
. . . . and must have been thought of here.
lol – not on this shift
we can't find the lint in our belly buttons

Alchemy
hell will freeze over before an accuracy of 0.1°C is achieved with a TC by you, me, or any else
and the budget does not matter in the slightest, don't give a shit what is spent
- you can't get there from here
the 'best' TC is a type T, and with a 'best' indicator you will be hard pressed to demonstrate ±0.2°C

now this has been covered by pHaestus, by me, and even webmedic
a suggestion: investigate before you state
(you are quite knowledgeable about some things, others may believe you also when you're blowing smoke, /rant)

RTDs are a whole 'nother kettle of fish, for enough $ you can see whatever is desired
my present setup has 0.01°C resolution and ±0.03°C uncertainity
- note that this is quite dependant on the actual RTD and its calibration (I use class "A"s)
and no, noise is nothing that a 4-wire setup and proper shielding cannot cope with

re the heat transfer via the coolant temps:
I don't do much of that at all, for the obvious reasons
(but I do record such as it is a good backwards ck of the coolant inlet temp)
pHaestus kind of has to do so as the CPU's heat quantification is being attempted

and I quite agree that all the correlations necessary to 'validate' a baseline for another fluid would be a massive source of potential error
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