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Message
Tracy,
Thanks for the clarification. I plan on making my own CHT
thermocouples by tig welding one end of J-type thermocouple wire and inserting
into a 1/8" hole in the rotor housing. What method would you suggest to
keep the sensing end from shorting once inserted into the rotor housing?
Would 1/16" shrink tubing work?
Mark S.
I talked to
Tracy about this today, mostly because I made all those J-type
thermocouples by just connecting the ends of the wire, but realized
that they aren't grounded, and I didn't ground them inside the connector
either. Tracy suggested grounding them at the junction instead.
My reply was something like "I don't see how you could generate a voltage when
you're grounding the connection of the two wires". His reply was to look
at a spark plug type CHT probe and notice that they're doing the exact same
thing. I sure can't explain it, but it must work.
I have yet to
thoroughly test my homemade ungrounded CHT probes, but at ambient temp, they all
read correctly. I'll give them a boiling water test at some point to see how
that holds up at higher temps.
Cheers,
Rusty
(progressing by deferring everything until
later)
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