A current will circulate in a closed circuit comprising two dissimilar conductors if a temperature difference is maintained between the two junctions.
Figure 2 Closed circuit: diagram showing in general terms how a thermocouple works
Broken circuit: heating the junction between the two different metals A and B creates a voltage eAB; it is a function of the temperature at the junction and the composition of the two metals. All dissimilar metals produce this effect.
Figure 3 Open circuit showing in general terms how a thermocouple works
Our latest articles
Reading time - 5 min
Upcoming events
Book following dates in your calendar: M+R 2025 – from 03/26/2025 to 03/27/2025 – Antwerp Expo – Stand 3100, Come and visit us! Invitation : https://register.visitcloud.com/survey/22v8m6mjp0fa5?actioncode=NTWO000049WQL&partner-contact=0esxkhcpph1iu…
Why is temperature not a physical quantity like other measurement units?
Temperature is not a quantity in the strict sense of the term as the majority of other measurement units are. A quantity is something which can be increased or decreased, for example length, area, power output, etc. Measuring a quantity…
Inor : Product Launch: Innovative Field Housing and Smart Indicators
Inor is excited to introduce our brand-new field housing and indicators, designed to deliver a reliable solution in demanding environments. These products combine robust construction with practical features to ensure long-term use, even in the most challenging conditions.
Beamex: Calibration Excellence since 1975 🏆
Beamex celebrates 50 years of providing the Process Industry with a better way to calibrateMore info Here
Thermibel goes social! 🎉
We’re delighted to announce that we’ve reached a new milestone! 📲You can now follow all our news, tips, innovations and meet our team directly on your favorite platforms. Follow us on our social networks! 🌟 📘 Facebook: https://www.facebook.com/profile.php?id=61563829479501…