Guhitamo Thermistor ya NTC: Ntukirengagize ibi bipimo 3

2026-05-25

Mu gihe uhitamo Ntc Thermisters, abantu benshi bashyiraho amabwiriza bashingiye gusa ku gaciro k’ubudahangarwa kuri dogere selisiyusi 25. Kubera iyo mpamvu, nyuma yo gushyiraho, habaho ihindagurika rikomeye mu gupima ubushyuhe, hamwe no guhindagurika kenshi ndetse no gukenera gusubiramo igikoresho cyose—ikibazo gituruka ku kunanirwa kugenzura ibipimo bitatu by’ingenzi.

I. Igipimo cy'agaciro ka B: "igipimo cy'ubugingo" cyo guhitamo icyitegererezo

Agaciro ka B ni igipimo cy'ingenzi kigena uburyo umuntu ashoboye Ntc Thermister, ibyo bikaba bigena ubuhaname bw'umuyoboro wayo wa RT. Ingano zisanzwe za B zirimo 3380K, 3950K, na 3470K. Ingano ya B iri hejuru ihuye n'uburyo bworoshye bwo kumva ubushyuhe buri hasi, ariko bigatuma habaho umurongo mubi mu bushyuhe bwinshi.

Ikosa risanzwe ryo guhitamo: Gusimbuza 10K B3380 na 10K B3950 bitanga agaciro k’ubudahangarwa bumwe kuri 25°C, ariko kunyuramo birenga 5% kuri 50°C. Kugira ngo usimburwe neza, agaciro ka B kagomba kuba kamwe.

II. RT Curve: Ntukibande ku ngingo imwe

Isano y’ubushyuhe n’ubukonje bya NTC ntabwo ari umurongo umwe; kwishingikiriza gusa ku gaciro k’inyuguti kuri 25°C ntibihagije. Ni ngombwa kugenzura imbonerahamwe yose ya RT mu gupima ubushyuhe kugira ngo hemezwe niba ukuri kw’aho ubushyuhe bukorerwa hujuje ibisabwa.

Urugero, Ntc 10k B3950 ifite ubushobozi bwo guhangana na dogere 32.6 KΩ kuri dogere 0 Selisiyusi na dogere 680 kuri dogere 100 Selisiyusi, bigaragaza itandukaniro rikomeye mu kuri hagati y’ubu bushyuhe. Niba imiterere y’imikorere yawe iri hagati ya dogere 0 Selisiyusi na dogere 50 Selisiyusi, ni ngombwa kugenzura neza igipimo cy’ubushyuhe bw’iki gice.

III. Ingaruka zo kwishyushya no gukwirakwiza amashanyarazi: Ibipimo bito bifite ingaruka zikomeye

Iyo umuriro unyura muri NTC, wikora wishyushya, bigatuma ubushyuhe bupimwe bwiyongera. Igipimo cyo gukwirakwiza δ (igice: mW/°C) kiranga ubushobozi bwo gukwirakwiza ubushyuhe bw'igice; agaciro ka δ kari hasi kerekana ingaruka nziza zo gushyushya.

Ibyifuzo byo guhitamo: Ingufu z'uruziga rwapimwe zigomba kugenzurwa muri 0.1 mW; mu mwanya ufunze cyangwa ahantu hatembera amazi make, shyira imbere amapaki ya NTC afite ingano nto n'agaciro ka δ kari hejuru.

IV. Imodoka nshya zikoresha ingufu n'ububiko bw'ingufu: Urwego rwa NTC rukura vuba kurusha izindi

Ubusabe bw'ibikoresho bishyushya bya NTC bwagaragaje iterambere rikomeye mu bijyanye n'ingufu nshya n'uburyo bwo kubika ingufu, aho isoko ryiyongeraho 23% buri mwaka. Ingero z'ingenzi zikoreshwa zirimo:

Porogaramu 01

1) Uburyo bwo kugenzura ubushyuhe bwa BMS: Buri paki ya bateri ikoresha ingufu isaba bateri 4 kugeza kuri 16 Ubushyuhe bwa NtcIngingo zo kumenya ubushyuhe bw'uturemangingo mu gihe nyacyo no gukumira ubushyuhe bukabije. Sensor igomba kuba yujuje ibi bikurikira: ubuziranenge mu gihe kiri hagati ya ± 1%, igihe cyo gusubiza ≤ amasegonda 5, n'icyemezo cya AEC-Q200 cy'imodoka.

Sisitemu yo gucunga bateri ya BMS Sensor y'ubushyuhe.png

Porogaramu 02

2) Utumashini dupima ubushyuhe bwo kubika ingufu Sisitemu yo kugenzura: Module za bateri, module z'amashanyarazi za IGBT, na inverters mu bubiko bunini bw'ingufu zose zikenera sensor za NTC kugira ngo zigenzure ubushyuhe. Bitewe n'ihindagurika rikomeye ry'ubushyuhe mu mikoreshereze y'ingufu (-20°C kugeza 85°C), sensor za NTC zifite ubushyuhe bwinshi kandi zihamye cyane ni ngombwa; agaciro ka B gasabwa ni 3950 K cyangwa 3435 K.

Utumashini dupima ubushyuhe bwo kubika ingufu.png

Porogaramu 03

3) Imashini ipima ubushyuhe bw'imbunda ikoresha amashanyarazi: Mu gihe cyo gusharija vuba, umuvuduko w'amashanyarazi urenga 400A. Sensor ya NTC ihora igenzura ubushyuhe bw'aho ikoresha gusharija kandi ikagabanya umuriro iyo ishyushye cyane. Igikoresho gikenera ipaki irinda ubushyuhe bwinshi kandi irinda guhindagurika.

sensor y'ubushyuhe bw'imbunda yo gushyushya station.png

Itandukaniro ry'ingenzi mu guhitamo NTC ku rwego rushya rw'ingufu riri mu bisabwa bibiri: kubahiriza ubwizerwe bw'urwego rw'imodoka (AEC-Q200) no guhuza neza mu bushyuhe bwinshi—ibintu NTC zisanzwe zidashobora guhura na byo.

Ikindi cyibutswa: Irinde ingorane zikunze kugaragara mu gihe cyo gusudira no gushyiraho

Ubushyuhe bwinshi cyane bwo gusudira cyangwa igihe kirekire cyo gusudira kuri thermistors za NTC bishobora gutera imiturire mito mu mubiri wa ceramic, bigatera kwiyongera k'ubudahangarwa. Ni byiza kugumana ubushyuhe bw'icyuma gisudira kuri ≤350°C no kugabanya buri gihe cyo gusudira kugeza ku masegonda ≤3 kugira ngo hirindwe umuvuduko ukabije uturuka ku gusuka.

Mu guhitamo thermistor ya NTC ikwiye, ibipimo bitatu ni ingenzi: coefficient ya B-value yo gushyira curve, ubwiza bw'ingufu za RT, na coefficient yo gukwirakwiza kugira ngo igenzure ubushyuhe. Ku ngufu nshya, ibindi bintu bigomba kwitabwaho birimo icyemezo cy'urwego rw'imodoka n'imikorere y'ubushyuhe bwagutse. Niba ugorwa no guhitamo, nyamuneka hamagara Itsinda rya Weiweilian rishinzwe ikoranabuhanga rya elegitoroniki—dutanga ubuyobozi bwuzuye bwo guhitamo thermistor ya NTC na serivisi zo gupima ingero.