Khanyetso ea Platinum, e tsejoang hape e le platinum thermal resistance, boleng ba eona ba ho hanyetsa bo tla fetoha le mocheso. 'Me boleng ba khanyetso ba khanyetso ea platinum bo tla eketseha khafetsa ka ho eketseha ha mocheso.
Platinum resistance e ka aroloa ka lihlahisoa tsa PT100 le PT1000, PT100 e bolela hore ho hanyetsa ha eona ho 0 ℃ ke 100 ohms, PT1000 ho bolela hore ho hanyetsa ha eona ho 0 ℃ ke 1000 ohms.
Ho hanyetsa Platinum ho na le melemo ea ho hanyetsa ho sisinyeha, botsitso bo botle, ho nepahala ho phahameng, ho hanyetsa khatello e phahameng, joalo-joalo E sebelisoa haholo ho tsa bongaka, motlakase, indasteri, lipalo tsa mocheso, sathelaete, boemo ba leholimo, palo ea ho hanyetsa le lisebelisoa tse ling tse phahameng tsa mocheso o nepahetseng.
Li-sensor tsa mocheso tsa PT100 kapa PT1000 ke li-sensor tse tloaelehileng haholo indastering ea ts'ebetso. Kaha ka bobeli ke li-sensor tsa RTD, khutsufatso ea RTD e emetse "sesebelisoa sa mocheso oa ho hanyetsa". Ka hona, ke sensor ea mocheso moo ho hanyetsa ho itšetlehileng ka mocheso; Ha mocheso o fetoha, ho hanyetsa ha sensor ho tla boela ho fetohe. Ka hona, ka ho lekanya khanyetso ea sensor ea RTD, o ka sebelisa sensor ea RTD ho lekanya mocheso.
Hangata li-sensor tsa RTD li entsoe ka platinum, koporo, li-alloys tsa nickel kapa li-oxide tse sa tšoaneng tsa tšepe, 'me PT100 ke e' ngoe ea li-sensor tse tloaelehileng haholo. Platinum ke lisebelisoa tse atileng haholo bakeng sa li-sensor tsa RTD. Platinum e na le kamano e ka tšeptjoang, e pheta-phetoang le e tsitsitseng ea ho hanyetsa mocheso. Li-sensor tsa RTD tse entsoeng ka platinum li bitsoa PRTS, kapa "li-thermometers tsa polatinamo". Sensor ea PRT e sebelisoang haholo indastering ea ts'ebetso ke sensor ea PT100. Nomoro "100" ka lebitso e bontša khanyetso ea 100 ohms ho 0 ° C (32 ° F). Tse ling ka seo hamorao. Le hoja PT100 e le mochine o tloaelehileng oa platinum RTD/PRT, ho na le tse ling tse 'maloa, tse kang PT25, PT50, PT200, PT500, le PT1000. Phapang e kholo pakeng tsa li-sensor tsena ho bonolo ho hakanya: ena ke khanyetso ea sensor ho 0 ° C, e boletsoeng ka lebitso. Mohlala, sensor ea PT1000 e na le khanyetso ea 1000 ohms ho 0 ° C. Hape ke habohlokoa ho utloisisa mocheso oa mocheso hobane o ama ho hanyetsa mocheso o mong. Haeba e le PT1000 (385), sena se bolela hore e na le tekanyo ea mocheso ea 0.00385°C. Lefatšeng ka bophara, phetolelo e tloaelehileng haholo ke 385. Haeba coefficient e sa boleloa, hangata ke 385.
Phapano Pakeng tsa PT1000 le PT100 Resistors e tjena:
1. Ho nepahala ho fapane: Maikutlo a maikutlo a PT1000 a phahame ho feta a PT100. Mocheso oa PT1000 o fetoha ka tekanyo e le 'ngoe,' me boleng ba ho hanyetsa bo eketseha kapa bo fokotseha ka hoo e ka bang 3.8 ohms. Mocheso oa PT100 o fetoha ka tekanyo e le 'ngoe,' me boleng ba ho hanyetsa bo eketseha kapa bo fokotseha ka hoo e ka bang 0.38 ohms, ho hlakile hore 3.8 ohms e bonolo ho lekanya ka nepo, kahoo ho nepahala le hona ho phahame.
2. Boemo ba mocheso oa tekanyo bo fapane.
PT1000 e loketse tekanyo e nyane ea mocheso oa mefuta e fapaneng; PT100 e loketse ho lekanya litekanyo tse kholo tsa mocheso.
3. Theko e fapane. Theko ea PT1000 e phahame ho feta ea PT100.
Nako ea poso: Jul-20-2023