工(Gong)作(Zuo)原(Yuan)理(Li)

热(Re)电(Dian)偶(Ou)是(Shi)由(You)两(Liang)种(Zhong)不(Bu)同(Tong)材(Cai)料(Liao)的(De)金(Jin)属(Shu)线(Xian)组(Zu)成(Cheng)，(?)两(Liang)端(Duan)分(Fen)别(Bie)焊(Han)起(Qi)来(Lai)形(Xing)成(Cheng)回(Hui)路(Lu)，(?)当(Dang)测(Ce)量(Liang)端(Duan)与(Yu)参(Can)比(Bi)端(Duan)之(Zhi)间(Jian)存(Cun)在(Zai)温(Wen)差(Cha)时(Shi)，(?)回(Hui)路(Lu)中(Zhong)就(Jiu)产(Chan)生(Sheng)了(Liao)热(Re)电(Dian)流(Liu)，(?)这(Zhe)两(Liang)条(Tiao)线(Xian)叫(Jiao)热(Re)电(Dian)偶(Ou)。(?)这(Zhe)个(Ge)现(Xian)象(Xiang)按(An)它(Ta)的(De)发(Fa)现(Xian)者(Zhe)命(Ming)名(Ming)为(Wei)Zeebeck效(Xiao)应(Ying)，(?)这(Zhe)个(Ge)效(Xiao)应(Ying)被(Bei)用(Yong)来(Lai)测(Ce)量(Liang)温(Wen)度(Du)。(?)热(Re)电(Dian)偶(Ou)特(Te)性(Xing)有(You)三(San)个(Ge)规(Gui)律(Lu)：(?)1、(?)同(Tong)成(Cheng)分(Fen)规(Gui)律(Lu)，(?)即(Ji)如(Ru)果(Guo)两(Liang)只(Zhi)金(Jin)属(Shu)线(Xian)是(Shi)同(Tong)种(Zhong)材(Cai)料(Liao)，(?)那(Na)么(Me)即(Ji)使(Shi)两(Liang)端(Duan)存(Cun)在(Zai)温(Wen)差(Cha)，(?)也(Ye)不(Bu)会(Hui)有(You)热(Re)电(Dian)动(Dong)势(Shi)产(Chan)生(Sheng)。(?)2、(?)中(Zhong)介(Jie)金(Jin)属(Shu)规(Gui)律(Lu)，(?)即(Ji)只(Zhi)要(Yao)接(Jie)点(Dian)温(Wen)度(Du)相(Xiang)同(Tong)，(?)即(Ji)使(Shi)回(Hui)路(Lu)中(Zhong)接(Jie)了(Liao)不(Bu)同(Tong)的(De)金(Jin)属(Shu)，(?)也(Ye)不(Bu)会(Hui)有(You)电(Dian)动(Dong)势(Shi)产(Chan)生(Sheng)。(?)3、(?)连(Lian)续(Xu)规(Gui)律(Lu)或(Huo)称(Cheng)为(Wei)中(Zhong)间(Jian)温(Wen)度(Du)规(Gui)律(Lu)，(?)即(Ji)当(Dang)这(Zhe)个(Ge)回(Hui)路(Lu)中(Zhong)有(You)个(Ge)中(Zhong)间(Jian)接(Jie)点(Dian)，(?)如(Ru)果(Guo)这(Zhe)个(Ge)中(Zhong)间(Jian)接(Jie)点(Dian)金(Jin)属(Shu)和(He)回(Hui)路(Lu)金(Jin)属(Shu)相(Xiang)同(Tong)，(?)回(Hui)路(Lu)的(De)电(Dian)动(Dong)势(Shi)将(Jiang)增(Zeng)加(Jia)。(?)