Jwalo ka ha re tseba kaofela, mosebetsi o ka sehloohong wa di-thermocouple ke ho lekanya le ho laola mocheso. Di sebediswa haholo diindastering tse kang petrochemical, meriana le tlhahiso. Ditshebetsong tsa diindasteri, ho beha leihlo mocheso ka nepo ho amana haufi le taolo ya boleng ba sehlahiswa le ntlafatso ya bokgoni ba tshebetso. Ka hona, terata ya thermocouple ya platinum-rhodium ke kgetho e tshepahalang le e nepahetseng hara mefuta e mengata ya dihlahiswa.
Empa ke engterata ea thermocouple ea platinum-rhodiumHo hlakile hore ke thermocouple e entsoeng ka litšepe tse peli tsa bohlokoa, platinum le rhodium, tse etselitsoeng ka ho khetheha ho mamella mocheso o phahameng le ho fana ka tekanyo e nepahetseng ea mocheso tlas'a maemo a feteletseng. Litšepe tsena ka bobeli li khethiloe ka hloko bakeng sa lintlha tsa tsona tse phahameng tsa ho qhibiliha, ho hanyetsa mafome le mefuta e mengata ea mocheso. Mefuta e tloaelehileng haholo ea terata ea thermocouple ea platinum-rhodium eo re e bonang ke li-thermocouple tsa mofuta oa S (platinum-10% rhodium/platinum) le mofuta oa R (platinum-13% rhodium/platinum).
Terata ea thermocouple ea platinum-rhodium e na le litšobotsi tse 'maloa tsa bohlokoa. Ea pele, terata ea thermocouple ea platinum-rhodium e ka mamella mocheso ho fihlela ho 1600°C (2912°F), e leng se etsang hore e lokele lits'ebetso tsa mocheso o phahameng joalo ka ts'ebetso e chesang, tlhokomelo ea sebōpi le tlhahiso ea lifofane. Ea bobeli, motsoako oa platinum le rhodium ka har'a terata ea thermocouple o netefatsa botsitso bo botle le ho pheta-pheta ha tekanyo ea mocheso, esita le tlas'a maemo a thata a mosebetsi. Ho phaella moo, terata ea thermocouple ea platinum-rhodium le eona e na le ho hanyetsa ho matla ha mafome, hammoho le nako ea karabelo e potlakileng, 'me terata e ka finyella tekanyo ea mocheso e potlakileng le e nepahetseng, e leng ea bohlokoa lits'ebetsong tse matla tsa indasteri.
Terata ea thermocouple ea platinum-rhodium e sebelisoa haholo masimong a indasteri ka litlhoko tse phahameng haholo bakeng sa ho lekanya le ho laola mocheso o phahameng. Mohlala, indastering ea kalafo ea mocheso, terata ea thermocouple ea platinum-rhodium e sebelisoa ho beha leihlo le ho laola mocheso oa lionto, lionto le lits'ebetso tsa kalafo ea mocheso ho netefatsa hore thepa e hlokahalang ea thepa ea fihlelloa. Ho phaella moo, indasteri ea lifofane e itšetleha ka terata ea platinum-rhodium bakeng sa ho beha leihlo mocheso o nepahetseng nakong ea ts'ebetso ea tlhahiso ea likarolo tsa lifofane, likarolo tsa enjene le lisebelisoa tse ling tsa bohlokoa tsa lifofane. Indasteri ea tlhahiso ea khalase le ceramic e e sebelisa ho beha leihlo mocheso oa lionto le lionto tse sebelisoang tlhahisong ea lisebelisoa tsa khalase, li-ceramic le lisebelisoa tse hanyetsang.
Ka bokhutšoane,terata ea thermocouple ea platinum-rhodiumke sesebelisoa sa bohlokoa bakeng sa ho lekanya mocheso o nepahetseng le taolo tšimong ea indasteri ea mocheso o phahameng. Tshebetso ea eona e ntle haholo, mefuta e mengata ea mocheso le ts'epo li etsa hore e be khetho ea pele bakeng sa liindasteri tse nang le litlhoko tse phahameng haholo tsa ho nepahala le botsitso. Hore na u ameha ho phekoleng mocheso, tlhahiso ea lifofane, ts'ebetso ea petrochemical, kapa liindasteri tse ling tse hlokang litekanyo tsa mocheso o phahameng, terata ea thermocouple ea platinum-rhodium e fana ka ho nepahala le ho tšoarella ho hlokahalang ho netefatsa ts'ebetso e ntle ea ts'ebetso le boleng ba sehlahisoa.
Nako ea poso: Phuptjane-13-2024
