Mafotokozedwe Akatundu
Mtundu R Thermocouple Waya
Chidule cha Zamalonda
Waya wa thermocouple wa Type R ndi thermocouple yachitsulo chamtengo wapatali yopangidwa ndi platinum-rhodium 13% alloy (mwendo wabwino) ndi platinum yoyera (mwendo wopanda pake). Ili m'gulu la platinum-rhodium thermocouple, yomwe imapereka kukhazikika kwapamwamba komanso kulondola m'malo otentha kwambiri, makamaka pakati pa 1000°C ndi 1600°C. Poyerekeza ndi thermocouple za Type S, ili ndi rhodium yambiri mu mwendo wabwino, zomwe zimapangitsa kuti ikhale yogwira ntchito bwino pakugwiritsa ntchito kutentha kwa nthawi yayitali.
Maonekedwe Okhazikika
- Mtundu wa Thermocouple: Mtundu wa R (Platinum-Rhodium 13-Platinum)
- Muyezo wa IEC: IEC 60584-1
- Muyezo wa ASTM: ASTM E230
Zinthu Zofunika Kwambiri
- Kukhazikika kwa Kutentha Kwambiri: Kutentha kwa nthawi yayitali mpaka 1400°C; kugwiritsa ntchito kwakanthawi kochepa mpaka 1700°C
- Kulondola Kwambiri: Kulekerera kwa Kalasi 1 kwa ±1.5°C kapena ±0.25% ya kuwerenga (chilichonse chomwe chili chachikulu)
- Kuthamanga Kochepa: ≤0.05% mphamvu ya thermoelectric potential drift itatha maola 1000 pa 1200°C
- Kukana kwa Oxidation: Kuchita bwino kwambiri mumlengalenga wothira okosijeni komanso wopanda okosijeni (pewani kuchepetsa malo)
- Mphamvu Yapamwamba ya Thermoelectric: Imapanga 10.574 mV pa 1500°C (malo olumikizirana pa 0°C)
Mafotokozedwe Aukadaulo
| Khalidwe | Mtengo |
| Waya awiri | 0.2mm, 0.3mm, 0.5mm (kulekerera: -0.015mm) |
| Mphamvu ya Thermoelectric (1000°C) | 7.121 mV (motsutsana ndi 0°C reference) |
| Kutentha kwa Ntchito Kwanthawi Yaitali | 1400°C |
| Kutentha Kwakanthawi Kochepa | 1700°C (≤maola 20) |
| Mphamvu Yokoka (20°C) | ≥130 MPa |
| Kutalikitsa | ≥25% |
| Kukana kwa Magetsi (20°C) | Mwendo wabwino: 0.24 Ω·mm²/m; Mwendo woipa: 0.098 Ω·mm²/m |
Kapangidwe ka Mankhwala (Kawirikawiri, %)
| Woyendetsa | Zinthu Zazikulu | Zinthu Zotsatizana (zosakwana, %) |
| Mwendo Wabwino (Platinum-Rhodium 13) | Gawo: 87, Rh: 13 | Ir:0.02, Ru:0.01, Fe:0.003, Cu:0.001 |
| Mwendo Woipa (Platinamu Yoyera) | Gawo: ≥99.99 | Rh:0.003, Ir:0.002, Fe:0.001, Ni:0.001 |
Zofotokozera Zamalonda
| Chinthu | Kufotokozera |
| Kutalika pa Spool iliyonse | 5m, 10m, 20m, 50m (chitsulo chamtengo wapatali) |
| Kumaliza Pamwamba | Wonyezimira, wowala ngati galasi (wopanda wosanjikiza wa okosijeni) |
| Kulongedza | Chotsekedwa ndi vacuum m'zidebe zodzaza ndi argon kuti zisaipitse |
| Kulinganiza | NIST-yosakira yokhala ndi satifiketi ya mphamvu ya thermoelectric |
| Zosankha Zamakonda | Kuyeretsa kwapadera komanso kodula kwambiri kuti kukhale koyera kwambiri |
Mapulogalamu Odziwika
- Kuyesa injini zamlengalenga (zipinda zoyaka moto kutentha kwambiri)
- Zitofu zamafakitale zolondola kwambiri (kusakaniza zinthu zadothi zapamwamba)
- Kupanga zinthu zoyezera mpweya (kupopera kwa silicon wafer)
- Kafukufuku wa zitsulo (kuyesa malo osungunuka a superalloy)
- Kupanga ulusi wagalasi (malo otentha kwambiri a ng'anjo)
Timaperekanso ma probe a thermocouple a mtundu wa R, zolumikizira, ndi mawaya owonjezera. Chifukwa cha mtengo wapamwamba wa zitsulo zamtengo wapatali, zitsanzo zaulere zimapezeka muutali wochepa (≤1m) ngati mungafune, ndi zikalata zatsatanetsatane za zinthu ndi malipoti owunikira zodetsa.
Yapitayi: 3J1 Zojambulazo Kukana Dzimbiri Chitsulo Nickel Chromium Alloy Zojambulazo Ni36crtial Ena: Waya wa B-Type Thermocouple wa Malo Otentha Kwambiri Kuzindikira Kutentha Kolondola