Page top

Lead Contents

FAQ00634 of Temperature Controllers FAQ

FAQ No. FAQ00634

Primary Contents

Question

What is "Thermocouple"?

Answer



Thermocouple temperature sensors are constructed using two dissimilar metals that are joined together. The junctions are called the measuring junction and the reference junction (output terminal side). A thermoelectromotive force is generated between the junctions with a fixed correlation to the temperature providing the difference in temperature.

Therefore, the temperature at the measuring junction can be determined from the thermoelectromotive force when a fixed temperature is maintained at the reference junction.

Thermocouple temperature sensors are capable of measuring the highest temperatures among contact temperature sensors by using this measurement method.

Recommended Products

K3HB-X

A Process Indicator Ideal for Discriminating and Displaying Measurements for Voltage/Current Signals

E5CN-H

A New High-performance Controller: High Resolution, High Speed, and High Input Accuracy. Logic Operations and Preventive Maintenance Function.

H5CZ

Easy to Use and Easy to Read.

Other Temperature Controllers FAQ