What Are Thermocouple Thermometers?
Thermocouple thermometers are temperature sensors made from two different types of metals. These sensors work by bringing one end of each metal type into contact with the target whose temperature is being measured.
The principle behind their operation is the measurement of the temperature difference at each end of the metals. This difference generates a voltage, known as thermoelectric power, which the thermometer converts into a temperature reading. Thermocouple thermometers are affordable and designed in a slim, wire-like shape, making them ideal for use in narrow spaces and on machine substrates. Their widespread use in industrial settings is attributed to their broad temperature measurement range, from -200 °C to 1700 °C, and their fast response time to temperature changes.