Agaciro Zeru Kurwanya Agaciro RT (Ω)
RT bivuga agaciro kokurwanya gupimwa kubushyuhe bwihariye T ukoresheje imbaraga zapimwe zitera impinduka zitari nke mubiciro byurwanya ugereranije nikosa ryo gupimwa.
Isano iri hagati yo kurwanya agaciro no guhindura ubushyuhe bwibikoresho bya elegitoronike ni ibi bikurikira:
RT = RN expB (1 / T - 1 / TN)
RT: Kurwanya ubushyuhe bwa NTC ku bushyuhe T (K).
RN: Kurwanya ubushyuhe bwa NTC ku bushyuhe bwagenwe TN (K).
T: Ubushyuhe bwihariye (K).
B: Ibikoresho bihoraho bya NTC thermistor, bizwi kandi nkibipimo byerekana ubushyuhe bwumuriro.
exp: ibyerekana bishingiye ku mubare karemano e (e = 2.71828…).
Umubano urafatika kandi ufite urwego rwukuri gusa murwego ruto rwubushyuhe bwa TN cyangwa urwego rwo guhangana na RN, kubera ko ibintu bihoraho B ubwabyo ari imikorere yubushyuhe T.
Ikigereranyo cya Zeru Imbaraga Zirwanya R25 (Ω)
Ukurikije ibipimo byigihugu, agaciro kangana na zeru nimbaraga zo kurwanya R25 zapimwe na termistor ya NTC ku bushyuhe bwa 25 ℃.Agaciro ko guhangana nigiciro cyo kurwanya nominal ya NTC thermistor.Mubisanzwe byavuzwe na NTC thermistor agaciro kangana gute, nayo yerekeza ku gaciro.
Ibikoresho bihoraho (indangagaciro yumuriro) B agaciro (K)
B indangagaciro zisobanurwa nk:
RT1: Kurwanya ingufu zeru ku bushyuhe T1 (K).
RT2: Agaciro ka zeru imbaraga zubushyuhe T2 (K).
T1, T2: Ubushyuhe bubiri bwerekanwe (K).
Kubisanzwe bya NTC thermistors, B agaciro kuva kuri 2000K kugeza 6000K.
Coefficient Zero Imbaraga Zirwanya Ubushyuhe (αT)
Ikigereranyo cyimpinduka zijyanye no guhangana na zeru-imbaraga zirwanya ubushyuhe bwa NTC ku bushyuhe bwihariye n’imihindagurikire y’ubushyuhe itera impinduka.
αT: coefficente yubushyuhe bwa zeru ubushyuhe bwa T (K).
RT: Agaciro kangana na zero kubushyuhe T (K).
T: Ubushyuhe (T).
B: Ibikoresho bihoraho.
Coefficient de Dissipation (δ)
Ku bushyuhe bwihariye bwibidukikije, coeffisente yo gukwirakwiza ya NTC thermistor ni igipimo cyingufu zagabanijwe muri résistoriste hamwe nubushyuhe bujyanye nubushyuhe.
Δ: Coefficient yo gutandukana ya NTC TheRmustor, (MW / K).
P: Imbaraga zikoreshwa na NTC thermistor (mW).
T: Ubushyuhe bwa NTC bukoresha imbaraga △ P, ihindagurika ryubushyuhe bujyanye numubiri urwanya (K).
Igihe cyumuriro gihoraho cyibikoresho bya elegitoronike (τ)
Mubihe bya zeru imbaraga, iyo ubushyuhe buhindutse gitunguranye, ubushyuhe bwa thermistor buhindura igihe gikenewe kuri 63.2% yubushyuhe bubiri bwa mbere.Igihe cyumuriro uhoraho ugereranije nubushyuhe bwa thermistor ya NTC kandi bihwanye na coefficente yayo.
τ: igihe cyumuriro gihoraho (S).
C: Ubushyuhe bwa NTC thermistor.
Δ: Coefficial ikubiyemo NTC TheRmustor.
Ikigereranyo cyimbaraga Pn
Amashanyarazi yemerewe gukoresha thermistor mugikorwa gikomeza igihe kirekire mubihe bya tekiniki yihariye.Munsi yizo mbaraga, ubushyuhe bwumubiri burwanya ntiburenza ubushyuhe bwabwo bukora.
Ubushyuhe ntarengwa bwo gukoraTmax: ubushyuhe ntarengwa aho thermistor ishobora gukora ubudahwema igihe kirekire mubihe bya tekiniki.Nukuvuga, T0- Ubushyuhe bwibidukikije.
Ibikoresho bya elegitoronike bipima imbaraga Pm
Ku bushyuhe bwibidukikije bwerekanwe, agaciro kokurwanya kumubiri urwanya gushyukwa numuyoboro wo gupima urashobora kwirengagizwa bijyanye nikosa ryo gupimwa.Mubisanzwe birasabwa ko impinduka zagaciro zo kurwanya zirenze 0.1%.
Igihe cyo kohereza: Werurwe-29-2023