ʻAno Thermocouple K Alumel / Chromel Rod / Stick / Bar 6mm 8mm 9mm 10mm 12mm
ʻAno Thermocouple K Alumel /ʻO ke koʻokoʻo Chromel/ Lāʻau / Pā 6mm 8mm 9mm 10mm 12mm
Hoʻohana ʻia ke ʻano K (CHROMEL vs ALUMEL) i nā lewa oxidizing, inert a i ʻole maloʻo. Pono e pale ʻia mai nā lewa sulfurous a me nā lewa oxidizing liʻiliʻi. He hilinaʻi a he kiʻekiʻe ka pololei ma nā mahana kiʻekiʻe.
1.KemikaHoʻonohonoho ʻana
| Mea Hana | Ka hoʻohuihui kemika (%) | ||||
| Ni | Cr | Si | Mn | Al | |
| KP(Chromel) | 90 | 10 | |||
| KN(Alumel) | 95 | 1-2 | 0.5-1.5 | 1-1.5 | |
2.Nā Waiwai Kino a me nā Waiwai Mīkini
| Mea Hana |
Ka nui (g/cm)3) | Kiko heheʻe ℃) | Ikaika Tensile (Mpa) | Ke kū'ē ʻana o ka leo (μΩ.cm) | Ka helu hoʻolōʻihi (%) |
| KP(Chromel) | 8.5 | 1427 | >490 | 70.6 (20 ℃) | >10 |
| KN(Alumel) | 8.6 | 1399 | >390 | 29.4 (20 ℃) | >15 |
3.Ka Pae Waiwai EMF ma nā Mahana ʻokoʻa
| Mea Hana | Ka waiwai EMF Vs Pt(μV) | |||||
| 100℃ | 200℃ | 300℃ | 400℃ | 500℃ | 600℃ | |
| KP(Chromel) | 2816~2896 | 5938~6018 | 9298~9378 | 12729~12821 | 16156~16266 | 19532~19676 |
| KN(Alumel) | 1218~1262 | 2140~2180 | 2849~2893 | 3600~3644 | 4403~4463 | 5271~5331 |
| Ka waiwai EMF Vs Pt(μV) | ||||
| 700℃ | 800℃ | 900℃ | 1000℃ | 1100℃ |
| 22845~22999 | 26064~26246 | 29223~29411 | 32313~32525 | 35336~35548 |
| 6167~6247 | 7080~7160 | 7959~8059 | 8807~8907 | 9617~9737 |
| ʻAno like ʻole a me ka papa kuhikuhi o ka Thermocouple | ||
| ʻAno like ʻole | ʻAno | Pae Ana (°C) |
| NiCr-NiSi | K | –200–1300 |
| NiCr-CuNi | E | –200–900 |
| Fe-CuNi | J | –40–750 |
| Cu-CuNi | T | –200–350 |
| NiCrSi-NiSi | N | –200–1300 |
| NiCr-AuFe0.07 | NiCr-AuFe0.07 | –270–0 |
0.5″ 12.7mm KP Chromel KN Alumel Thermocouple ʻAno K Rod Noi
ʻO ke ʻano o ke ʻano K, ʻo ia ka ikaika o ka hana anti-oxidation, a pono e hoʻohana mau ʻia i loko o kahi lewa oxidizing a inert. ʻO ka mahana hoʻohana lōʻihi he 1000 ℃ a ʻo ka mahana pōkole he 1200 ℃. ʻO ia ka mea i hoʻohana nui ʻia ma waena o nā thermocouples āpau; (ʻaʻole hiki ke hoʻohana ʻia no ka hoʻemi ʻana i ke kinoea).
Ka Hana ʻana a me ke Ana ʻana i ka Pae Mahana o ka Thermocouple:
| Mea Thermocouple | Ka laulā mahana hana a me ke ahonui | |||||
| Papa I | Papa II | |||||
| Papa Kuhikuhi | ʻAnode | Cathode | Ke ana ʻana i ka mahana | Hoʻomanawanui | Ke ana ʻana i ka mahana | Hoʻomanawanui |
| K | NiCr10 | NiAl2 | -40℃-1000℃ | ±1.5℃ a i ʻole ±0.4%*T | 40℃-1200℃ | ±2.5 ℃ a i ʻole 0.75% * T |
| T | Cu | CuNi40 | -40℃-350℃ | 40℃-350℃ | ±1℃ a i ʻole 0.75%*T | |
| J | Fe | CuNi40 | -40℃-750℃ | 40℃-750℃ | ±2.5 ℃ a i ʻole 0.75% * T | |
| E | NiCr10 | CuNi45 | -40℃-800℃ | 40℃-900℃ | ||
| N | NiCr14Si | NiSi4Mg | -40℃-1000℃ | 40℃-1200℃ | ±2.5 ℃ a i ʻole 0.75% * T | |
| R | Pt-13%Rh | Pt | 0℃-1000℃ | 0℃-600℃ | ±1.5℃ | |
| S | Pt-10%Rh | 1000℃-1600℃ | ±(1+0.003) | 600℃-1600℃ | 0.25%*T | |
| B | Pt-30%Rh | Pt-6%Rh | - | - | 600℃-1700℃ | ±1.5 ℃ a i ʻole 0.25% * T |
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