China dị iche iche nha Chromel Alumel iferi waya maka K ụdị okpomọkụ sensọ mmepụta na ụlọ ọrụ

Nha dị iche iche Chromel Alumel Bare Waya maka ụdị ihe mmetụta okpomọkụ egosipụtara onyonyo

Ụdị dị iche iche Chromel Alumel Bare Waya maka ihe mmetụta okpomọkụ ụdị K

Nkọwa dị mkpirikpi:

Thermocouple bụ ihe mmetụta a na-eji tụọ okpomọkụ. Thermocouples nwere ụkwụ waya abụọ ejiri ọla dị iche iche mee. A na-ejikọta ụkwụ wires ọnụ n'otu njedebe, na-eke njikọ. Njikọ a bụ ebe a na-atụle okpomọkụ. Mgbe nkwụsịtụ ahụ nwere mgbanwe na okpomọkụ, a na-emepụta voltaji. Enwere ike ịtụgharị voltaji ahụ site na iji tebụl ntụaka thermocouple iji gbakọọ okpomọkụ.
NiCr-NiAl (Type K) waya thermocouple na-achọta ihe kacha eji eme ihe na thermocouple basemetal, na okpomọkụ karịa 500 Celsius.

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Ụdị dị iche iche Chromel Alumel Bare Waya maka ihe mmetụta okpomọkụ ụdị K

A na-eji TYPE K (CHROMEL vs ALUMEL) na ikuku oxidizing, inert ma ọ bụ akọrọ na-ebelata ikuku. Mkpughe na agụụ na-ejedebe na obere oge. Ekwesịrị ichebe ya pụọ na ikuku sọlfọ na obere ikuku oxidize. Kwesịrị ntụkwasị obi na nke ziri ezi na oke okpomọkụ.

1.ChemicalComposition

Ihe onwunwe	Ngwakọta kemịkalụ (%)
Ihe onwunwe	Ni	Cr	Si	Mn	Al
Chromel (KP)	90	10
KN (Alumel)	95		1-2	0.5-1.5	1-1.5

2.Njirimara anụ ahụ na akụrụngwa akụrụngwa

Ihe onwunwe	Njupụta (g/cm3)	Ebe mgbazeºC)	Ike Tensile (Mpa)	Mgbochi olu (μΩ.cm)	Ọnụọgụ mmụba (%)
Chromel (KP)	8.5	1427	> 490	70.6 (20ºC)	>10
KN (Alumel)	8.6	1399	> 390	29.4 (20ºC)	>15

3.Ọnụ ahịa EMF dị na okpomọkụ dị iche iche

Ihe onwunwe	Uru EMF Vs Pt(μV)
Ihe onwunwe	100ºC	200ºC	300ºC	400ºC	500ºC	600ºC
Chromel (KP)	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

Uru EMF Vs Pt(μV)
700ºC	800ºC	900ºC	1000ºC	1100ºC
22845-22999	26064-26246	29223-29411	32313-32525	35336-35548
6167-6247	7080-7160	7959-8059	8807-8907	9617-9737

4.Ụdị, nhazi na ụdị thermocouples

Ụdị	Nhọpụta	Thermocouple	Thermocouple NJ ọkwa
SC na RC	Copper-ọla kọpa nickel 0.6 akwụ ụgwọ ụzọ na-akwụ ụgwọ	Platonic-rhodium 10-platinum Thermocouple	S na R
SC na RC	Copper-ọla kọpa nickel 0.6 akwụ ụgwọ ụzọ na-akwụ ụgwọ	Platonic-rhodium 13-platinum thermocouple	S na R
KCA	Iron-ọla kọpa nickel 22 akwụ ụgwọ Ndu	nickel-chromium nickel thermocouple	K
KCB	Iron-ọla kọpa nickel 40 akwụ ụgwọ ndu
KX	Nickel-chromium 10-nickel 3 ogologo Igwe na-akwụ ụgwọ Lead / akwụ ụgwọ
NC	Iron-ọla kọpa nickel 18 na-akwụ ụgwọ ụzọ	Nickel-chromium silicon-nickel thermocouple	N
NX	Nickel-chromium 14 silicon-nickel 4 ogologo na-akwụ ụgwọ ụzọ / akwụ ụgwọ eriri	Nickel-chromium silicon-nickel thermocouple	N
EX	Nickel-chromium 10-nickel 45 ogologo na-akwụ ụgwọ ụzọ / akwụ ụgwọ eriri	Nickel-chromium-cupronickel thermocouple	E
JX	Iron-ọla kọpa nickel 45 na-akwụ ụgwọ ogologo oge ụzọ / akwụ ụgwọ eriri	Iron-constantan thermocouple	J
TX	Iron-nickel-chromium 45 na-akwụ ụgwọ ogologo oge ụzọ / akwụ ụgwọ eriri	Ọla kọpa-constantan thermocouple	T