Phapano ke efe lipakeng tsa thermocouple le thermo resistance?

Hajoale, theli-li-thermocouplese sebelisoa machabeng e na le lintlha tse tloaelehileng. Melao ea machabeng e supa hore li-li-li-thermocouples li arotsoe ka likarolo tse robeli tse fapaneng, e leng B, R, S, K, N, E, J le T, mme mocheso o lekantsoeng o tlase. E ka metha ka tlase ho 270 likhato tsa Celsius le ho fihla ho likhato tse 1800 tsa Celsius. Har'a tsona, B, R, le S ke tsa letoto la platinamo tsa li-li-li-thermocouples. Kaha polatinamo ke tšepe ea bohlokoa, e boetse e bitsoa li-thermocouple tsa tšepe tsa bohlokoa 'me tse setseng li bitsoa Metal thermocouple e theko e tlaase.

Hona le mefuta e 'meli eali-li-thermocouples, mofuta o tloaelehileng le mofuta oa lihlomo.

Hangata li-li-li-thermocouples tse tloaelehileng li entsoe ka thermode, tube insulating, sleeve e sireletsang le lebokose la matekoane, athe thermocouple ea armored ke motsoako oa terata ea thermocouple, thepa e sireletsang le sleeve ea tšepe e sireletsang. Motsoako o tiileng o entsoeng ka ho otlolla. Empa lets'oao la motlakase la thermocouple le hloka terata e khethehileng ho fetisa, mofuta ona oa mohala o bitsoa terata ea matšeliso.
Li-thermocouple tse fapaneng li hloka likhoele tse fapaneng tsa tefo, 'me mosebetsi oa tsona oa mantlha ke ho hokela le sesebelisoa sa ho boloka qetello ea thermocouple hole le phepelo ea motlakase, hore mocheso oa pheletso ea litšupiso o tsitsitse.

Lithapo tsa matšeliso li arotsoe ka mefuta e 'meli: mofuta oa matšeliso le mofuta oa ho atolosa
Sebopeho sa lik'hemik'hale sa terata ea katoloso se ts'oana le sa thermocouple e lefuoang, empa ts'ebetsong, terata ea katoloso ha e entsoe ka thepa e ts'oanang le thermocouple. Ka kakaretso, e nkeloa sebaka ke terata e nang le letsoalo le lekanang la elektronike joalokathermocouple. Kamano pakeng tsa terata ea matšeliso le thermocouple hangata e hlakile haholo. Pole e ntle ea thermocouple e kopantsoe le mohala o mofubelu oa terata ea matšeliso, 'me palo e mpe e amana le' mala o setseng.

Boholo ba likhoele tsa matšeliso a akaretsang li entsoe ka alloy ea koporo-nickel.
Thermocouple ke sesebelisoa sa mocheso se sebelisoang haholo ho lekanya mocheso. Litšobotsi tsa eona tse ka sehloohong ke mefuta e mengata ea tekanyo ea mocheso, ts'ebetso e tsitsitseng, sebopeho se bonolo, karabelo e ntle e matla, 'me transmitter ea phetoho e ka fetisa matšoao a hona joale a 4-20mA hole. , E loketse ho laola ka mokhoa o itekanetseng le ho laola 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 thermoelectric, e tsejoang hape e le phello ea Seebeck. Matla a thermoelectric a hlahisoang ka loop e koetsoeng e entsoe ka mefuta e 'meli ea matla a motlakase; phapang ea mocheso matla a motlakase le bokhoni ba ho kopana le motlakase.

Leha khatello ea mocheso e boetse e sebelisoa haholo indastering, ts'ebeliso ea eona e lekantsoe ka lebaka la tekanyo ea eona ea mocheso. Molao-motheo oa litekanyo tsa mocheso oa mocheso oa mocheso o thehiloe ho boleng ba ho hanela ba mokhanni kapa semiconductor e fetohang le mocheso. tšobotsi. E boetse e na le menyetla e mengata. E ka fetisa le lipontšo tsa motlakase hole. E na le kutloisiso e phahameng, botsitso bo matla, ho fapanyetsana le ho nepahala. Leha ho le joalo, e hloka phepelo ea motlakase ebile e ke ke ea lekanya liphetoho tsa mocheso hanghang.

Mocheso o lekantsoeng ke mocheso oa mocheso o sebelisoang indastering o batla o le tlase, mme litekanyo tsa mocheso ha li hloke terata ea matšeliso, mme theko e batla e le theko e tlase.