What is a thermocouple used for?

What is a thermocouple used for?

• A. As a measure of pressure
• B. As a temperature sensor
• C. As a method for sound detection
• D. As a medium for chemical reactions

Answer: (B)

A thermocouple is utilized as a temperature sensor by measuring the temperature of an object or environment. It operates based on the Seebeck effect, which generates a voltage when two dissimilar metals are joined at two junctions, creating a temperature difference. This voltage can be correlated to the temperature difference, allowing for precise temperature readings. When the materials in a thermocouple are heated or cooled, the voltage changes, producing an electrical reading that can be interpreted to determine the temperature. Thermocouples are widely used in various applications, from industrial processes to household appliances, due to their simplicity, durability, and wide temperature range capabilities.

A thermocouple is utilized as a temperature sensor by measuring the temperature of an object or environment. It operates based on the Seebeck effect, which generates a voltage when two dissimilar metals are joined at two junctions, creating a temperature difference. This voltage can be correlated to the temperature difference, allowing for precise temperature readings.

When the materials in a thermocouple are heated or cooled, the voltage changes, producing an electrical reading that can be interpreted to determine the temperature. Thermocouples are widely used in various applications, from industrial processes to household appliances, due to their simplicity, durability, and wide temperature range capabilities.