Taba ea pele, mabapi le sebopeho sa thepa, terata ea mofuta oa thermocouple J - mofuta oa thermocouple o na le motsoako oa tšepe - constantan. Tšepe e sebetsa joalo ka leoto le nepahetseng, athe constantan (akoporo - nickel alloy) e sebetsa joalo ka leoto le fosahetseng. Ka lehlakoreng le leng, terata ea K - mofuta oa thermocouple e entsoe kachromel- motsoako oa alumel. Chromel, eo haholo-holo e entsoeng ka nickel le chromium, ke leoto le letle, le alumel, nickel - aluminium - manganese - silicon alloy, ke leoto le fosahetseng. Phapang ena ea lintho tse bonahalang e lebisa mefuteng e fapaneng ea litšobotsi tsa bona tsa tshebetso.

Taba ea bobeli, maemo a mocheso ao ba ka a methang a fapana haholo.J - mofuta oa thermocoupleska tlwaelo e kgona ho lekanya mocheso ho tloha ho -210°C ho ya ho 760°C. Li loketse hantle - li loketse mefuta e fapaneng ea likopo tse nang le litlhoko tse itekanetseng tsa mocheso. Mohlala, indastering ea ho lokisa lijo, li-thermocouples tsa mofuta oa J - hangata li sebelisoa liontong tsa ho baka. Ha u baka bohobe, mocheso ka har'a onto hangata o tloha ho 150°C ho ea ho 250°C. Lithapo tsa rona tsa boleng bo holimo tsa mofuta oa J - mofuta oa thermocouple li ka beha leihlo mocheso ona ka nepo, ho netefatsa hore bohobe bo apehiloe ka ho lekana le ho fihlela sebopeho se phethahetseng. Kopo e 'ngoe ke tlhahiso ea meriana, moo li-thermocouples tsa mofuta oa J - li sebelisetsoang ho lekanya mocheso nakong ea ho omisa lithethefatsi tse itseng. Thempereichara ts'ebetsong ena hangata e bolokoa ka har'a 50 ° C ho isa ho 70 ° C, 'me lihlahisoa tsa rona tsa mohala oa mofuta oa J - thermocouple li ka fana ka data e tšepahalang ea mocheso, ho sireletsa boleng ba lithethefatsi.

K - mofuta oa thermocouples, ka lehlakoreng le leng, o na le mocheso o pharaletseng, ho tloha ho -200 ° C ho ea ho 1350 ° C. Sena se etsa hore e be tsa bohlokoa haholo lits'ebetsong tsa mocheso o phahameng. Ka indasteri ea ho etsa tšepe,K - mofuta oa thermocouplesli sebelisetsoa ho shebella mocheso ka hare ho sebōpi sa ho phatloha. Mocheso ka har'a sebōpi sa mollo o ka fihla ho 1200 ° C kapa ho feta. Lithapo tsa rona tsa mofuta oa K - thermocouple li ka mamella mocheso o joalo o feteletseng ha li ntse li boloka ho nepahala ho phahameng, ho lumella basebelisi ho laola ka nepo ts'ebetso ea ho qhibilihisa le ho netefatsa boleng ba tšepe. Sebakeng sa sefofane, nakong ea liteko tsa likarolo tsa enjene ea jet, li-thermocouples tsa mofuta oa K li sebelisoa ho lekanya likhase tse phahameng tsa mocheso tse hlahisoang nakong ea ts'ebetso ea enjene. Likhase tsena li ka fihla mocheso o haufi le 1300 ° C, 'me lihlahisoa tsa rona tsa terata tsa mofuta oa K - thermocouple li ka fana ka lipalo tse nepahetseng tsa mocheso, tse bohlokoa bakeng sa nts'etsopele le ntlafatso ea lienjine tsa jete.

Ho nepahala ke ntlha e ’ngoe ea bohlokoa. K - mofuta oa thermocouples ka kakaretso o fana ka ho nepahala ho betere ho feta mefuta e mengata ea mocheso ha e bapisoa le J - mofuta oa thermocouples. Ho tsitsa ha li-thermocouples tsa mofuta oa K libakeng tse thata le tsona li kenya letsoho ho nepahala ha tsona, ho li etsa khetho e ratoang bakeng sa lipatlisiso tsa mahlale le lits'ebetso tse phahameng tsa indasteri.

Tankii, lihlahisoa tsa rona tsa terata tsa J le K tsa thermocouple li entsoe ka taolo e thata ea boleng. Lithapo tsa rona tsa mofuta oa J - thermocouple li netefatsa ts'ebetso e tšepahalang ka har'a mocheso oa tsona o boletsoeng, ha mehala ea rona ea mofuta oa K - thermocouple e etselitsoe ho mamella mocheso o phahameng ka ho nepahala le botsitso bo botle haholo. Hore na o hloka ho lekanya lits'ebetso tsa sehatsetsi se tlase-tlase kapa maemo a indasteri a mocheso o phahameng, lihlahisoa tsa rona tsa terata tsa thermocouple li ka u fa lintlha tse nepahetseng le tse tsitsitseng tsa mocheso, tsa u thusa ho ntlafatsa ts'ebetso ea hau le ho netefatsa boleng ba sehlahisoa.