Kedu ihe bụ thermostat?
Ndị na-ahụ maka okpomọkụ nwere aha dị iche iche, dị ka mgbanaka njikwa okpomọkụ, ihe nchekwa okpomọkụ na ndị na-ahụ maka okpomọkụ.Dị ka ụkpụrụ na-arụ ọrụ si dị, ọ nwere ike kewaa n'ime ụdị jumps, mmiri mmiri ụdị thermostat, mgbali ụdị thermostat na electronic ụdị thermostat.N'ime akụrụngwa njikwa ụlọ ọrụ ọgbara ọhụrụ, temometa dijitalụ bụ ụdị a na-ejikarị eme ihe.Dị ka ihe owuwu ahụ si dị, enwere ike kewaa onye na-ahụ maka okpomọkụ ka ọ bụrụ njikwa okpomọkụ agbakwunyere na njikwa okpomọkụ modular.
Gịnị bụ temometa?
Ahụ na-enyocha okpomọkụ bụ ihe na-agbanwe mgbaàmà okpomọkụ ka ọ bụrụ mgbaàmà eletriki, ma na-etinyekarị ya na akụkụ nchọpụta nke ihe a na-achịkwa iji nyochaa uru okpomọkụ ya.N'ebe a na-achịkwa ụlọ ọrụ mmepụta ihe, temometa ndị a na-ejikarị agụnye thermocouples, thermal resistors, thermistors na ndị na-abụghị kọntaktị.N'ime ha, atọ mbụ bụ kọntaktị temometa.
1. Thermocouple
Ụkpụrụ nke nha okpomọkụ maka thermocouples dabere na mmetụta Seebeck (mmetụta thermoelectric).Mgbe ọla abụọ nke ihe dị iche iche (na-abụkarị ndị na-eduzi ma ọ bụ semiconductor, dị ka platinum-rhodium, nickel-chromium-nickel-silicon na ihe ndị ọzọ jikọtara ọnụ) na-emepụta akaghị emechi ma tinye okpomọkụ dị iche iche na njedebe njikọ abụọ ha, a na-emepụta ike electromotive n'etiti. ọla abụọ ahụ.A na-akpọ loop dị otú ahụ "thermocouple," ebe a na-akpọ ọla abụọ ahụ "electrode thermal," na ihe na-esi na ya pụta bụ ihe a na-akpọ "thermoelectric motive force."A na-eji thermocouples mara oke okpomọkụ ha dị obosara, nzaghachi okpomọkụ ngwa ngwa, yana nguzogide ịma jijiji siri ike.
2. Nguzogide okpomọkụ
Nguzogide okpomọkụ bụ ihe na-agbanwe mgbaàmà okpomọkụ ka ọ bụrụ mgbaàmà eletriki, ụkpụrụ ọrụ ya na-adaberekwa na njirimara nke nguzogide ígwè na mgbanwe okpomọkụ.Kpọmkwem, thermal resistors na-eji uru nke a onwunwe nke metal tụọ okpomọkụ.
Na njikwa ụlọ ọrụ, ụdị nguzogide okpomọkụ a na-ejikarị gụnyere platinum, ọla kọpa na nickel.N'ime ha, nguzogide platinum bụ nke a na-ahụkarị.The thermal eguzogide nwere àgwà nke ọma okpomọkụ linearity, kwụsiri ike ịrụ ọrụ na elu nkenke na ubi nke nkịtị okpomọkụ.Ya mere, na mpaghara ngwa ngwa nke okpomọkụ na-agafeghị oke, ọ dịghị vibration na ihe dị elu chọrọ, a na-ahọrọkarị iji nguzogide platinum.
3. Thermistor
Thermistor bụ ihe na-agbanwe mgbama okpomọkụ ka ọ bụrụ akara ọkụ eletrik, ụkpụrụ ọrụ ya dabere na njirimara nke nguzogide semiconductor na-agbanwe na okpomọkụ.Kpọmkwem, thermistors na-eji ohere a nke semiconductors tụọ okpomọkụ.E jiri ya tụnyere thermal eguzogide, nguzogide nke thermistor na-agbanwe nke ukwuu na mgbanwe nke okpomọkụ, ya mere, okpomọkụ nha nso nso dị warara (-50 ~ 350 ℃).
Thermistors na-ekewa n'ime NTC thermistors na PTC thermistor.Ndị na-ekpo ọkụ NTC nwere ọnụọgụ okpomọkụ na-adịghị mma, na uru nkwụsị ha na-ebelata ka okpomọkụ na-abawanye.PTC thermistor nwere ọnụọgụ okpomọkụ dị mma, yana uru nguzogide ya ga-abawanye na mmụba nke okpomọkụ.N'ihi njirimara okpomọkụ na-eguzogide ya pụrụ iche, thermistor nwere ọtụtụ ngwa na nchọpụta okpomọkụ, njikwa akpaka, ngwaọrụ eletrọnịkị na mpaghara ndị ọzọ.
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