Thermocouple

Thermocouple thermometers and probes are types of temperature measurement devices that are widely used in various industries, including manufacturing, food processing, and scientific research. These devices work by measuring the voltage generated by the thermoelectric effect when two dissimilar metals are joined together at their ends.

A thermocouple probe is made up of two different metal wires, usually a positive wire made of a metal like platinum or rhodium, and a negative wire made of a metal like copper or iron. These two wires are connected at one end and the other end of each wire is exposed, allowing them to be placed in the environment whose temperature is being measured.

When there is a temperature difference between the two exposed ends of the wires, a voltage is generated due to the thermoelectric effect. This voltage is then measured and converted into a temperature reading by the thermometer.

Thermocouple thermometers can measure a wide range of temperatures, from extremely low temperatures to extremely high temperatures, depending on the type of metals used in the probe. They are also relatively fast and accurate, making them a popular choice for temperature measurement in many industries.

Thermocouple probes come in a variety of sizes and shapes, including handheld probes for point measurement, long probes for measuring the temperature of liquids or gases in pipes, and surface probes for measuring the temperature of flat surfaces. They are also available in different types depending on the specific metals used in the probe and the range of temperatures they can measure.