Gabatarwa:

A cikin hanyoyin samar da masana'antu, zazzabi yana ɗaya daga cikin mahimman sigogi waɗanda ke buƙatar aunawa da sarrafawa. A cikin ma'aunin zafin jiki, ana amfani da thermocouples sosai. Suna da fa'idodi da yawa, kamar tsari mai sauƙi, ƙira mai dacewa, kewayon ma'auni, babban madaidaici, ƙaramin rashin ƙarfi, da sauƙin watsa siginar fitarwa. Bugu da ƙari, saboda thermocouple na'urar firikwensin wucewa ne, baya buƙatar samar da wutar lantarki ta waje yayin aunawa, kuma yana da matukar dacewa don amfani, don haka ana amfani dashi sau da yawa don auna zafin gas ko ruwa a cikin tanda da bututu da kuma yanayin zafin jiki na daskararru.

Ka'idar Aiki:

Lokacin da akwai nau'i biyu daban-daban na conductors ko semiconductors A da B don samar da madauki, kuma iyakar biyu suna haɗuwa da juna, idan dai yanayin zafi a cikin mahaɗin biyu ya bambanta, yanayin zafi na ƙarshen ɗaya shine T, wanda ake kira ƙarshen aiki ko ƙarshen zafi, kuma yanayin zafi na sauran ƙarshen shine T0 , wanda ake kira ƙarshen kyauta (wanda ake kira ƙarshen tunani) ko kuma ƙarfin sanyi zai zama wutar lantarki da ma'aunin wuta, wutar lantarki za ta haifar da ƙarshen. Girman ƙarfin lantarki yana da alaƙa da kayan mai gudanarwa da zafin jiki na mahaɗa biyu. Ana kiran wannan al'amari "thermoelectric sakamako", kuma madauki wanda ya ƙunshi madugu biyu ana kiransa "thermocouple".

Thermoelectromotive force ya kunshi sassa biyu, daya bangaren shi ne lamba electromotive karfi na conductors biyu, dayan bangaren kuma shi ne thermoelectric electromotive karfi na guda conductor.

Girman ƙarfin thermoelectromotive a cikin madauki na thermocouple yana da alaƙa kawai da kayan gudanarwa wanda ya haɗa thermocouple da zafin jiki na mahaɗin biyu, kuma ba shi da alaƙa da siffar da girman thermocouple. Lokacin da aka gyara kayan lantarki guda biyu na thermocouple, ƙarfin thermoelectromotive shine yanayin haɗuwa biyu t da t0. aiki ba shi da kyau.