Chiyambi：

Mu njira zopangira mafakitale, kutentha ndi chimodzi mwa zinthu zofunika kwambiri zomwe ziyenera kuyezedwa ndi kulamulidwa. Poyesa kutentha, ma thermocouple amagwiritsidwa ntchito kwambiri. Ali ndi ubwino wambiri, monga kapangidwe kosavuta, kupanga kosavuta, kuchuluka kwa miyeso, kulondola kwambiri, kuchepa pang'ono, komanso kutumiza mosavuta zizindikiro zotulutsa. Kuphatikiza apo, chifukwa thermocouple ndi sensa yosagwira ntchito, sifunikira magetsi akunja panthawi yoyezera, ndipo ndi yosavuta kugwiritsa ntchito, kotero nthawi zambiri imagwiritsidwa ntchito poyesa kutentha kwa mpweya kapena madzi m'mauvuni ndi mapaipi komanso kutentha kwa pamwamba pa zinthu zolimba.

Mfundo Yogwira Ntchito:

Pamene pali ma conductor awiri osiyana kapena ma semiconductor A ndi B kuti apange loop, ndipo malekezero awiriwa alumikizidwa wina ndi mnzake, bola ngati kutentha pa malo awiriwa kuli kosiyana, kutentha kwa mbali imodzi ndi T, komwe kumatchedwa working end kapena hot end, ndipo kutentha kwa mbali inayo ndi T0, komwe kumatchedwa free end (kotchedwanso reference end) kapena cold end, electromotive force idzapangidwa mu loop, ndipo kutsogolera ndi kukula kwa mphamvu ya electromotive zimagwirizana ndi zinthu za conductor ndi kutentha kwa malo awiriwa. Chochitikachi chimatchedwa "thermoelectric effect", ndipo loop yopangidwa ndi ma conductor awiri imatchedwa "thermocouple".

Mphamvu ya thermoelectromotive ili ndi magawo awiri, gawo limodzi ndi mphamvu ya electromotive yolumikizana ya ma conductor awiri, ndipo gawo lina ndi mphamvu ya thermoelectric electromotive ya conductor mmodzi.

Kukula kwa mphamvu ya thermoelectromotive mu thermocouple loop kumangogwirizana ndi zinthu zoyendetsera zomwe zimapanga thermocouple ndi kutentha kwa malo awiri olumikizirana, ndipo sikukhudzana ndi mawonekedwe ndi kukula kwa thermocouple. Pamene zinthu ziwiri za electrode za thermocouple zakhazikika, mphamvu ya thermoelectromotive ndi kutentha kwa malo awiri olumikizirana t ndi t0. ntchito yake imakhala yoipa.