Ibyingenzi bikoreshwa nubwitonzi bwa NTC thermistor

NTC bisobanura “Coefficient Negative Temperature”. Ubushyuhe bwa NTC ni résistoriste hamwe na coeffisente yubushyuhe bubi, bivuze ko kurwanya kugabanuka hamwe nubushyuhe bwiyongera. Ikozwe muri manganese, cobalt, nikel, umuringa nibindi byuma bya oxyde nkibikoresho byingenzi byakozwe na ceramic. Ibi bikoresho bya okiside yicyuma bifite imitekerereze ya semiconducting kuko birasa rwose nibikoresho bya semiconducting nka germanium na silicon muburyo bwo kuyobora amashanyarazi. Ibikurikira nintangiriro yo gukoresha uburyo nintego ya NTC thermistor mukuzunguruka.
Iyo thermistor ya NTC ikoreshwa mugushakisha ubushyuhe, kugenzura cyangwa kwishyurwa, mubisanzwe birakenewe guhuza rezistor ikurikirana. Guhitamo agaciro kokurwanya birashobora kugenwa ukurikije ubushuhe bugomba kumenyekana nubunini butemba. Muri rusange, résistoriste ifite agaciro kangana nubushyuhe busanzwe bwa NTC izahuzwa murukurikirane, kandi umuyaga unyuramo wizezwa ko ari muto bihagije kugirango wirinde kwishyushya kandi bigira ingaruka kumyumvire yo kumenya.Ikimenyetso cyamenyekanye nikigice voltage kuri thermistor ya NTC. Niba ushaka kubona umurongo urenze umurongo hagati ya voltage igice nubushyuhe, urashobora gukoresha uruziga rukurikira:

Imikoreshereze ya NTC thermistor

Ukurikije ibiranga coefficient mbi ya thermistor ya NTC, ikoreshwa cyane mubihe bikurikira:
1. Indishyi zubushyuhe bwa tristoriste, IC, oscillator ya kristu kubikoresho byitumanaho rigendanwa.
2. Kwumva Ubushyuhe bwa Batteri zishobora kwishyurwa.
3. Indishyi z'ubushyuhe kuri LCD.
4. Indishyi z'ubushyuhe no kumva ibikoresho by'amajwi y'imodoka (CD, MD, tuner).
5. Indishyi zubushyuhe kumuzunguruko itandukanye.
6. Guhagarika amashanyarazi ya inrush muguhindura amashanyarazi nu mashanyarazi.
Icyitonderwa cyo gukoresha NTC thermistor
1. Witondere ubushyuhe bwakazi bwa NTC thermistor.
Ntuzigere ukoresha NTC thermistor hanze yubushyuhe bwo gukora. Ubushyuhe bwo gukora bwa φ5, φ7, φ9, na φ11 ni -40 ~ + 150 ℃; ubushyuhe bwo gukora bwa φ13, φ15, na φ20 ni -40 ~ + 200 ℃.
2. Nyamuneka menya ko thermistors ya NTC igomba gukoreshwa mubihe byamashanyarazi.
Imbaraga ntarengwa zapimwe muri buri cyerekezo ni: φ5-0.7W, φ7-1.2W, φ9-1.9W, φ11-2.3W, φ13-3W, φ15-3.5W, φ20-4W
3. Kwirinda gukoreshwa mubushyuhe bwinshi nubushuhe buhebuje.
Niba thermistor ya NTC ikeneye gukoreshwa mubushyuhe bwinshi nubushuhe buhebuje, hagomba gukoreshwa ubwoko bwimyanya ndangagitsina kandi igice gifunze cyicyuma gikingira kigomba guhura nibidukikije (amazi, ubushuhe), nigice cyo gufungura icyatsi. ntizishobora guhura namazi na parike.
4. Ntishobora gukoreshwa muri gaze yangiza, ibidukikije byamazi.
Ntukayikoreshe ahantu hashobora kwangirika cyangwa ahantu hazahurira na electrolytite, amazi yumunyu, acide, alkalis, hamwe nudukoko twangiza.
5. Kurinda insinga.
Ntugakabye kandi uhetamye insinga kandi ntukoreshe kunyeganyega gukabije, guhungabana hamwe nigitutu.
6. Irinde ibikoresho bya elegitoroniki bitanga ubushyuhe.
Irinde gushiraho ibikoresho bya elegitoronike bikunda gushyuha hafi yubushyuhe bwa NTC, Birasabwa gukoresha ibicuruzwa bifite isonga ryinshi mugice cyo hejuru cyikirenge cyunamye, kandi ugakoresha thermistor ya NTC kugirango ube mwinshi kuruta ibindi bice kurubaho kugirango wirinde gushyuha bigira ingaruka kumikorere isanzwe yibindi bice.