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14. Propulsion

A thermocouple indication is taken from the

  • hot junction
  • cold junction
  • difference between the hot junction and the cold junction

Explanation from PART66Online

A thermocouple generates an EMF proportional to the temperature difference between its measuring (hot) junction and its reference (cold) junction. The instrument therefore reads that difference, and accurate temperature requires cold-junction compensation; the output depends on neither junction alone.

S

serzeb asked · 23 Sep 2013

Cant understand this answer, it is suppose to be difference b/w hot and cold.please explain why only cold junction.

Community Comments (3)

M
MridulDev 24 Sep 2013
look for "seebek effect on internet", answer is correct you don't need to get confused. check out the pic link below for quick reference.

daviddarling.info/images/Seebeck_effe...
R
raulsburgos 10 Sep 2018
Them, the answer in the web is not correct no?
A
ademceven 19 Feb 2020
its sayin the indication taken from it doesnt say where the current occurs

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