Kompenzacija temperature termoelementa

Kompenzacija temperature termoelementa
Since the materials of thermocouples are generally relatively precious (especially when precious metals are used), and the distance between the temperature measurement point and the instrument is very far, in order to save thermocouple materials and reduce costs, a compensation wire is usually used to extend the cold end (free end) of the thermocouple to the control room where the temperature is relatively stable, and connect it to the instrument Terminal {{0}} je treba opozoriti, da je vloga žice za kompenzacijo termoelementov le za razširitev vročega elektrode, tako da se hladen konec termoelementa premakne na terminal instrumenta v kontrolni sobi ., ki ga ne more odpraviti vpliva na temperaturno spremembo temperature na temperaturo na hladnem konju. role. Therefore, other modification measures are required to compensate for the impact on temperature measurement when the cold end temperature t0≠0℃. When using thermocouple compensation wires, it is necessary to pay attention to the matching of the models, the polarity cannot be connected incorrectly, and the temperature difference between the compensation wire and the thermocouple connection end ne more presegati 100 stopinj .