5 Types of Thermocouples and Their Applications

Thermocouples are temperature sensors used in various industries to measure temperatures in a range of environments. They are made of two different types of metal wires that produce a voltage output proportional to the temperature difference between the two wires. There are many different types of thermocouples available, each with its own unique characteristics and applications. In this article, we’ll discuss 5 types of thermocouples and their applications.

Type K Thermocouple

Type K thermocouples are the most commonly used type of thermocouple. They are made of chromel and alumel wires and can measure temperatures up to 1,372 degrees Celsius (2,502 degrees Fahrenheit). They are often used in the steel industry, furnace thermocouples, and other high-temperature applications.

Type J Thermocouple

Type J thermocouples are made of iron and constantan wires and can measure temperatures up to 760 degrees Celsius (1,400 degrees Fahrenheit). They are often used in low-temperature applications, such as food processing and laboratory settings.

Type T Thermocouple

Type T thermocouples are made of copper and constantan wires and can measure temperatures up to 370 degrees Celsius (700 degrees Fahrenheit). They are often used in low-temperature applications, such as refrigeration and HVAC systems.

Type E Thermocouple

Type E thermocouples are made of chromel and constantan wires and can measure temperatures up to 900 degrees Celsius (1,652 degrees Fahrenheit). They are often used in cryogenics and other low-temperature applications.

Type N Thermocouple

Type N thermocouples are made of nicrosil and nisil wires and can measure temperatures up to 1,280 degrees Celsius (2,336 degrees Fahrenheit). They are often used in high-temperature applications, such as aerospace and gas turbine engines.

In conclusion, thermocouples are a versatile tool used in many different industries to measure temperature in a range of environments. With so many different types of thermocouples available, it’s important to choose the right type of thermocouple for your needs and application. Whether you’re measuring high temperatures in the steel industry or low temperatures in a laboratory, there’s a thermocouple available that can help you get the job done.