How does one create a complete profile, including TCR for an "unlisted" wire?

[kismetcapitan]

the wire I mainly use in vaping is 24 gauge platinum/ruthenium (95%/5%). That 5% ruthenium is making a difference such that I cannot use the TCR for pure platinum...which is essentially useless because you can't really buy 100% platinum; it's always alloyed 5-10% with ruthenium or iridium (and a few others). common sense says that each alloy is going to have a different TCR.

There's throwing guesstimate TCRs and going the trial and error method, but unless I stumble across the exact TCR, it won't perform correctly at all temperatures and wattages.

Is there a more accurate way of determining what the EXACT TCR for this wire is?

[black lace]

Sorry to state the obvious but have you contacted the admin of steam engin, (may be able to point you in the right direction)

[Spirometry]

https://forum.evolvapor.com/topic/68195-topic/?do=findComment&comment=913247

Check out John's post #3

[kismetcapitan]

that's a very cool approach, except why use kanthal wires to the coil being tested? wouldn't copper or other non-resistive wire be better?

unless using wire that has basically zero variation in resistance versus temperature is critical; then you need kanthal.

mad scientist time in the kitchen!