Thermowells and thermocouples play a crucial role in systems designed for temperature
measurement. Thermowells are protective tubes that house temperature sensors, safeguarding
them from harsh environments while allowing for accurate readings. On the other hand,
thermocouples are devices that measure temperature by generating a voltage based on the
temperature difference between two junctions made of different metals. Together, these
instruments provide reliable temperature data crucial for various industrial applications.
What is Thermowell?
A thermowell is a protective device used to house temperature sensors, such as thermocouples or
resistance temperature detectors (RTDs). It serves as a barrier between the sensor and the process
fluid, allowing for accurate temperature measurement while safeguarding the sensor from harsh
environmental conditions, pressure, and corrosive substances.
What is Thermocouple?
A thermocouple is a device used for measuring temperature, composed of two different types of
metal wires that are connected at one end. When the junction of these metals is exposed to a
temperature difference, it generates a voltage that can be correlated to the temperature. This
principle allows thermocouples to be widely used in various applications for monitoring and
controlling temperature.