They consist of two different metals joined together, making a continuous circuit. When there is a temperature difference between any two points in the circuit, an electromotive force (voltage) occurs.
There are several types of thermocouples, constructed from various different metals and with differing temperature ranges and accuracies.
The main advantages of thermocouple include:
High temperature operating range- can be used in applications with temperatures as high as 1700°C
Versatility- can be formed to fit a particular application
Durability in high vibration or mechanical shock applications
Generally smaller than RTDs
Pyrosales supplies a wide range of thermocouples for varying applications, including:
Pyrosales Pty Ltd is an Australian-owned company. We have developed an international reputation as a specialist manufacturer of standard and precision temperature measurement sensors.
We are Australia's longest established and largest manufacturer of thermocouples and resistance temperature sensors, with operations in Sydney, Melbourne, and Brisbane.
We are a leading exporter of temperature sensors to Asia, Southeast Asia, India, North and South America, Africa, Europe, and South Pacific.
A dedicated team of people support Pyrosales. We design, custom-engineer, and market a comprehensive product range. Our expertise and capability allow us to service some of the world's leading companies in industries as diverse as glass, iron and steel, petrochemical, aluminium, power generation, food, plastics, and aerospace.