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 wani firikwensin motsi 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 saman. zafin jiki na daskararru.

Ka'idar Aiki:

Lokacin da aka samu mabambantan conductors ko semiconductor A da B da za su samar da madauki, kuma an haɗa ƙarshen biyun da juna, muddin yanayin yanayin mahaɗin biyu ya bambanta, zafin ƙarshen ƙarshen shine T, wanda ake kira da. Ƙarshen aiki ko ƙarshen zafi, kuma yawan zafin jiki na sauran ƙarshen shine T0, wanda ake kira ƙarshen kyauta (wanda ake kira ƙarshen tunani) ko ƙarshen sanyi, za a haifar da ƙarfin lantarki a cikin madauki, da shugabanci da girman 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.