Termoparisensorit

Termoparisensorit, often referred to as thermocouples, are temperature-measuring devices. They operate on the principle of the thermoelectric effect, discovered by Thomas Seebeck in the early 19th century. When two dissimilar metals are joined at two points, and these two junctions are at different temperatures, a voltage difference is generated between the junctions. This voltage is directly proportional to the temperature difference.

A basic thermocouple consists of two wires made of different metals, joined at one end to form the measuring junction. The other ends of the wires are connected to a voltage-measuring instrument, forming the reference junction. The instrument measures the small voltage produced, which is then converted into a temperature reading using a known calibration or lookup table for the specific metal combination.

Various types of thermocouples exist, categorized by the combination of metals used, such as Type J (iron-constantan), Type K (chromel-alumel), and Type T (copper-constantan). Each type has a different temperature range, sensitivity, and suitability for different environments. Type K is one of the most common due to its wide temperature range and availability.

Termoparisensorit are widely used across many industries, including manufacturing, automotive, aerospace, and scientific research, due to their robustness, wide operating temperature range, relatively low cost, and simple construction. They are suitable for measuring temperatures in harsh or extreme conditions where other sensors might fail. However, their accuracy can be affected by factors like wire homogeneity, junction integrity, and ambient temperature at the reference junction.