Sensors & Measurement
Thermocouple
A temperature sensor made from two different metals that generate a tiny voltage related to temperature difference.
IN ONE SENTENCE
Different metal combinations create standard thermocouple types such as K, J and T.
In normal English
Thermocouples tolerate wide temperature ranges and harsh conditions but need cold-junction compensation and the correct extension cable.
Why would I use it?
Use it for high temperatures, fast response or rugged applications.
THINK OF IT LIKE…
Two metals creating a tiny temperature-dependent voltage.
Related terms
RTD, Type K, cold junction
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