Thermocouple ke sesebelisoa sa mocheso se sebelisoang hangata ho lekanya mocheso

Pele ho tsohle, thermocouple ke sesebelisoa sa mocheso se sebelisoang hangata ho lekanya mocheso. Litšobotsi tsa eona tse ka sehloohong ke mefuta e mengata ea ho lekanya kako, ts'ebetso e batlang e tsitsitse, sebopeho se bonolo, karabelo e ntle ea matla, 'me e ka fetisa matšoao a motlakase a 4-20mA hole, e leng bonolo bakeng sa taolo ea othomathike. Le taolo e bohareng.
Molao-motheo oathermocoupletekanyo ea mocheso e itšetlehile ka phello ea thermoelectric. Ho hokela li-conductors tse peli tse fapaneng kapa li-semiconductors ka har'a lupu e koetsoeng, ha lithempereichara tsa mateano a mabeli li fapane, bokhoni ba thermoelectric bo tla hlahisoa ka har'a lupu. Ketsahalo ena e bitsoa phello ea pyroelectric, e tsejoang hape e le Seebeck effect.

Matla a thermoelectric a hlahisoang ka loop e koetsoeng e entsoe ka mefuta e 'meli ea matla a motlakase; bokhoni ba thermoelectric le bokhoni ba ho kopana. Thermoelectric potential e bolela matla a motlakase a hlahisoang ke lipheletsong tse peli tsa conductor e le 'ngoe ka lebaka la mocheso o fapaneng. Li-conductors tse fapaneng li na le li-elektronike tse fapaneng, kahoo li hlahisa matla a fapaneng a motlakase. Khokahano ea ho ikopanya e bolela ha li-conductors tse peli tse fapaneng li kopane.

Hobane matla a tsona a elektronike a fapane, ho na le phapang e itseng ea elektronike. Ha li fihla tekanyong e itseng, bokhoni bo ka bang teng ka bokhoni ba ho ikopanya bo its'etleha ho thepa ea batsamaisi ba babeli ba fapaneng le thempereichara ea libaka tseo ba kopanang le tsona. Hajoale, theli-li-thermocouplesse sebedisoang machabeng se be le maemo. Li-li-li-thermocouples tse laoloang ke machaba li arotsoe ka likarolo tse robeli tse fapaneng, e leng B, R, S, K, N, E, J le T, tse khonang ho lekanya mocheso o tlaase. E lekanya likhato tse 270 tsa Celsius ka tlas'a zero, 'me e ka fihla holimo ho likhato tse 1800 tsa Celsius.

Har'a bona, B, R, le S ke ba letoto la platinamo eali-li-thermocouples. Kaha polatinamo ke tšepe ea bohlokoa, e boetse e bitsoa li-li-li-thermocouples tsa tšepe ea bohlokoa 'me tse setseng li bitsoa li-li-li-thermocouples tsa theko e tlase. Ho na le mefuta e 'meli ea meaho ea thermocouple, mofuta o tloaelehileng le mofuta oa lihlomo. Li-li-li-thermocouples tse tloaelehileng hangata li entsoe ka thermode, insulating tube, sleeve ea tokiso le lebokose la mateano, ha armored thermocouple e le motsoako oa terata ea thermocouple, lisebelisoa tsa ho kenya lintho kahare le sleeve ea tšepe ka mora kopano, kamora ho hula motswako o tiileng o entsoeng ka ho otlolla.