http://www.omega.com has a great technical on TC's and a few helpers for purchasing what you need for a given application. (gas, liquid, etc.)
I could go into exhausting detail about shielding material, how the tip is presented, special limits of error, table look-up vs. sensitivity curves, bla, bla, bla, HOWEVER most of the that all becomes irrelevant when you consider how the raw voltage signal is acquired, processed and presented to us via EFILive hardware.
EGT probes:
http://forum.efilive.com/showthread....&highlight=egt
It looks as if the way EFILIVE handles TC's could be the primary limiting factor in accuracy and sensor choice.
Maybe one of the guys could chime in on an official detail as to how TCs are processed to clear things up?
I'd like to know;
1. Do they use a NIST table Look-up or an approximate sensitivity of 41 µV/°C method?
2. What is the resolution of the analog inputs? (Bits)
3. What is the sample rate, filter and sampling method?
Once we know this then I can suggest specific TC's as inexpensive as $20 a piece and an accuracy of 1°C/sec.
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