Thermistors na-agụnye ọnụọgụ okpomọkụ dị mma (PTC) na ọnụọgụ okpomọkụ na-adịghị mma (NTC), na oké okpomọkụ thermistors (CTRS).
1.PTC thermistor
The Positive Temperature CoeffiCient (PTC) bụ thermistor phenomen ma ọ bụ ihe onwunwe nwere ezigbo okpomọkụ ọnụọgụ na mmụba dị nkọ na nguzogide na ụfọdụ okpomọkụ.Enwere ike iji ya dị ka ihe mmetụta okpomọkụ mgbe niile.Ihe ahụ bụ ahụ siri ike na BaTiO3, SrTiO3 ma ọ bụ PbTiO3 dị ka ihe bụ isi, ma na-agbakwụnye oxides nke Mn, Fe, Cu na Cr nke na-eme ka ọnụọgụ okpomọkụ na-eguzogide dị mma na ihe mgbakwunye ndị ọzọ na-arụ ọrụ ndị ọzọ.A na-emepụta ihe ahụ site na usoro seramiiki na-emekarị ma na-agbanye ya na okpomọkụ dị elu iji mee ka platinum titanate na ngwọta siri ike ya na-arụ ọrụ.Ya mere, a na-enweta ihe thermistor nwere àgwà dị mma.Ọnụọgụ ọnọdụ okpomọkụ na ebe Curie dị iche iche na-adabere na nhazi ya na ọnọdụ sentering (karịsịa okpomọkụ jụrụ oyi).
PTC thermistor pụtara na narị afọ nke 20, PTC thermistor nwere ike iji maka nha okpomọkụ na njikwa na ụlọ ọrụ, a na-ejikwa ya maka nchọpụta okpomọkụ na ụkpụrụ nke akụkụ nke ụgbọ ala, kamakwa ọnụ ọgụgụ buru ibu nke akụrụngwa obodo, dị ka njikwa nke ngwa ngwa mmiri ọkụ mmiri okpomọkụ, ikuku oyi na oyi nchekwa okpomọkụ, iji kpo oku nke ya maka nyocha gas na anemometer na akụkụ ndị ọzọ.
PCT thermistor nwere ọrụ nke idobe okpomọkụ n'otu ebe, ma na-arụkwa ọrụ nke ịgbanwee.N'iji njirimara nguzogide okpomọkụ a dị ka isi iyi ọkụ, ọ nwekwara ike ịrụ ọrụ nke nchebe ikpo ọkụ maka ngwa eletriki.
2.NTC thermistor
Negative Temperature CoeffiCient (NTC) na-ezo aka na ihe omume thermistor na ihe onwunwe nwere ọnụọgụ okpomọkụ na-adịghị mma n'ihi na nguzogide na-ebelata nke ukwuu ka okpomọkụ na-ebili.Ihe bụ seramiiki semiconducting mere nke abụọ ma ọ bụ karịa metal oxides dị ka manganese, ọla kọpa, silicon, cobalt, ígwè, nickel, na zinc, nke a na-agwakọta nke ọma, kpụrụ, na sintered iji mepụta thermistor na-adịghị mma okpomọkụ ọnụọgụ (NTC). ).
Ọkwa mmepe nke NTC thermistor: site na nchọpụta ya na narị afọ nke 19 ruo mmepe ya na narị afọ nke 20, a ka na-emeziwanye ya.
The nkenke nke thermistor temometa nwere ike iru 0.1 ℃, na okpomọkụ mmetụta oge nwere ike ịbụ ihe na-erughị 10s.Ọ bụghị naanị na ọ dị mma maka temometa granary, kamakwa enwere ike iji ya na nchekwa nri, ọgwụ na ahụike, ọrụ ugbo sayensị, oke osimiri, olulu mmiri miri emi, elu elu, nha okpomọkụ glacier.
3.CTR thermistor
Igwe ọkụ dị egwu Thermistor CTR (Critical Temperature Resistor) nwere njirimara nguzogide na-adịghị mma, na ọnọdụ okpomọkụ, nguzogide na-ebelata nke ukwuu na mmụba nke okpomọkụ ma nwee nnukwu ọnụọgụ okpomọkụ na-adịghị mma.Ihe mejupụtara ya bụ vanadium, barium, strontium, phosphorus na ihe ndị ọzọ nke ahụ agwakọtara agwakọta, bụ semiconductor ọkara iko, nke a makwaara dị ka CTR maka thermistor iko.Enwere ike iji CTR dị ka mkpu njikwa okpomọkụ na ngwa ndị ọzọ.
Enwere ike iji Thermistor dị ka ihe eletrọnịkị sekit maka nkwụghachi okpomọkụ sekit akụrụngwa yana nkwụghachi okpomọkụ nke njedebe oyi thermocouple.Enwere ike nweta njikwa uru akpaaka site na iji njirimara ọkụ onwe nke NTC thermistor, yana sekit stabilization amplitude, sekit na-egbu oge na sekit nchebe nke RC oscillator nwere ike ịrụ.A na-ejikarị PTC thermistor eme ihe na ngwa eletriki na-ekpo ọkụ na-ekpo oke ọkụ, relay contactless, okpomọkụ na-adị mgbe niile, njikwa uru akpaaka, mmalite moto, oge igbu oge, agba agba TV akpaka demagging, mkpu ọkụ na ụgwọ okpomọkụ, wdg.
Oge nzipu: Jan-16-2023