Ukumelana nePlatinum, okwaziwa nangokuthi ukumelana nokushisa kwe-platinum, inani layo lokumelana lizoshintsha nezinga lokushisa.Futhi inani lokumelana lokumelana neplatinamu lizokhula njalo ngokukhuphuka kwezinga lokushisa.
Ukumelana nePlatinum kungahlukaniswa ngemikhiqizo yochungechunge lwe-PT100 ne-PT1000, i-PT100 isho ukuthi ukumelana kwayo ku-0℃ kungu-100 ohms, i-PT1000 isho ukuthi ukumelana kwayo ku-0℃ ngu-1000 ohms.
Ukumelana ne-Platinum kunezinzuzo zokumelana nokudlidliza, ukuzinza okuhle, ukunemba okuphezulu, ukumelana nokucindezela okukhulu, njll. Kusetshenziswa kabanzi kwezokwelapha, imoto, imboni, ukubala izinga lokushisa, i-satellite, isimo sezulu, ukubala ukumelana nezinye izinto zokushisa ezinembile kakhulu.
Izinzwa zokushisa ze-PT100 noma ze-PT1000 ziyizinzwa ezivame kakhulu embonini yezinqubo.Njengoba zombili ziyizinzwa ze-RTD, isifinyezo se-RTD simele “umtshina wokumelana nezinga lokushisa”.Ngakho-ke, inzwa yokushisa lapho ukumelana kuncike ekushiseni;Lapho izinga lokushisa lishintsha, ukumelana kwenzwa nakho kuzoshintsha.Ngakho-ke, ngokulinganisa ukumelana kwenzwa ye-RTD, ungasebenzisa inzwa ye-RTD ukukala izinga lokushisa.
Izinzwa ze-RTD ngokuvamile zenziwe nge-platinum, ithusi, i-nickel alloys noma ama-oxide ensimbi ahlukahlukene, futhi i-PT100 ingenye yezinzwa ezivame kakhulu.I-Platinum iyinto ejwayeleke kakhulu yezinzwa ze-RTD.Iplatinamu inobudlelwano obuthembekile, obuphindaphindekayo kanye nomugqa wokumelana nezinga lokushisa.Izinzwa ze-RTD ezenziwe ngeplatinamu zibizwa nge-PRTS, noma “ama-thermometers okumelana ne-platinum.”Inzwa ye-PRT esetshenziswa kakhulu embonini yenqubo inzwa ye-PT100.Inombolo “100″ egameni ikhombisa ukumelana kwama-ohm ayi-100 ku-0°C (32°F).Okuningi ngalokho kamuva.Nakuba i-PT100 iyinzwa yeplatinamu ye-RTD/PRT evame kakhulu, kunezinye ezimbalwa, njenge-PT25, PT50, PT200, PT500, ne-PT1000.Umehluko omkhulu phakathi kwalezi zinzwa kulula ukuqagela: lokhu ukumelana kwenzwa ku-0 ° C, okukhulunywa ngayo egameni.Isibonelo, inzwa ye-PT1000 inokumelana no-1000 ohms ku-0°C.Kubalulekile futhi ukuqonda i-coefficient yezinga lokushisa ngoba lithinta ukumelana kwamanye amazinga okushisa.Uma kuyi-PT1000 (385), lokhu kusho ukuthi ine-coefficient yezinga lokushisa engu-0.00385°C.Emhlabeni wonke, inguqulo evame kakhulu ngu-385. Uma i-coefficient ingashiwongo, ngokuvamile iba ngu-385.
Umehluko Phakathi kwe-PT1000 kanye ne-PT100 Resistors umi kanje:
1. Ukunemba kuhlukile: Ukuzwela kokusabela kwe-PT1000 kungaphezulu kwalokho kwe-PT100.Izinga lokushisa le-PT1000 lishintsha ngedigri eyodwa, futhi inani lokumelana likhuphuka noma lehle ngo-3.8 ohms.Izinga lokushisa le-PT100 lishintsha nge-degree eyodwa, futhi inani lokumelana likhuphuka noma liyancipha cishe ngo-0.38 ohms, ngokusobala i-3.8 ohms kulula ukuyikala ngokunembile, ngakho ukunemba nakho kuphakeme.
2. Ibanga lokushisa lokulinganisa lihlukile.
I-PT1000 ifaneleka ukulinganisa izinga lokushisa elincane;I-PT100 ilungele ukukala izilinganiso zokushisa zebanga elikhulu.
3. Intengo ihlukile.Intengo ye-PT1000 iphakeme kunaleyo ye-PT100.
Isikhathi sokuthumela: Jul-20-2023