Spring irin thermocouple masana'antun. Spring-irin thermocouple ne wani zafin jiki m bangare, shi ne daya gauge, shi ne kai tsaye auna zafin jiki, da kuma canza zafin jiki siginar zuwa zafi lantarki dynamic siginar, ta hanyar lantarki gauge (biyu gauge) zuwa zafin jiki da aka auna kafofin watsa labarai. Tushen ka'idar auna zafin jiki na thermocouple shine nau'ikan abubuwa daban-daban gudanarwa na kayan aiki don ƙirƙirar rufe zagaye, lokacin da ƙarshen biyu ke da zafin jiki na zafin jiki, zagaye zai sami wutar lantarki, a wannan lokacin akwai ƙarfin lantarki tsakanin ƙarshen biyu - ƙarfin lantarki na zafi, wanda ake kira Sebek effect.

Biyu daban-daban abubuwa na homogeneous jagora ne thermal lantarki, mafi girma zafin jiki karshen aiki, da ƙananan zafin jiki karshen 'yanci karshen, da 'yanci karshen ne yawanci a karkashin wani m zafin jiki. Dangane da dangantakar aikin thermoelectric da zafin jiki, yin thermocouple allometer; An samu ma'aunin rabuwa a yanayin zafin jiki na karshen kyauta a 0 ℃, daban-daban thermocouples suna da ma'aunin rabuwa daban-daban.

Lokacin da aka shigar da kayan ƙarfe na uku a cikin madaidaicin thermocouple, muddin zafin jiki na abubuwan biyu na wannan kayan zai kasance daidai, zafin wutar lantarki da thermocouple ta samar zai kasance ba tare da canji ba, watau ba shi da tasiri a cikin madaidaicin shigar da ƙarfe na uku. Saboda haka, a lokacin auna zafin jiki na thermocouple, za a iya samun damar ma'aunin ma'auni, bayan auna zafin jiki na lantarki, za a iya sanin zafin jiki na kafofin watsa labarai da aka auna.