Zambiri za sensor ya oxygen

Mfundo Yofunika:

Sensa ya oxygen ndi kasinthidwe kokhazikika pagalimoto.Amagwiritsa ntchito zinthu za ceramic kuti athe kuyeza kuthekera kwa okosijeni mu chitoliro chagalimoto, ndikuwerengera kuchuluka kwa okosijeni molingana ndi mfundo yamankhwala kuti ayang'anire ndikuwongolera chiwopsezo chamafuta amafuta kuti zitsimikizire mtundu wazinthu Ndi chinthu choyezera chomwe chimakumana ndi kutulutsa kwa mpweya. muyezo.

Mpweya wa okosijeni umagwiritsidwa ntchito kwambiri m'mlengalenga wa mitundu yosiyanasiyana ya kuyaka kwa malasha, kuyaka kwamafuta, kuyaka kwa gasi, ndi zina zotero. Ndi njira yabwino kwambiri yoyezera mpweya wamoto panopa.Ili ndi ubwino wa dongosolo losavuta, kuyankha mofulumira, kukonza kosavuta, kugwiritsa ntchito bwino, kuyeza kolondola, etc. Kugwiritsa ntchito kachipangizo kuyeza ndi kulamulira mpweya woyaka moto sikungathe kukhazikika komanso kupititsa patsogolo khalidwe la mankhwala, komanso kufupikitsa kuzungulira kwa kupanga ndikupulumutsa mphamvu. .

Makongoletsedwe

Sensor ya oxygen imagwiritsa ntchitoNernst mfundo.

Chofunikira kwambiri ndi chubu cha ceramic cha ZrO2, chomwe ndi cholimba cha electrolyte, chokhala ndi ma elekitirodi a platinamu (Pt) opindika mbali zonse.Pa kutentha kwina, chifukwa cha kusiyanasiyana kwa mpweya wa okosijeni kumbali zonse ziwiri, mamolekyu a okosijeni omwe ali kumbali yochuluka kwambiri (mbali ya mkati mwa chubu cha ceramic 4) amalowetsedwa pa electrode ya platinamu ndikuphatikizana ndi ma elekitironi (4e) kuti apange. oxygen ions O2-, yomwe imapangitsa kuti electrode iperekedwe bwino, O2 - Ma ion amasamukira kudera lotsika la oxygen (mbali yotulutsa mpweya) kudzera m'mipata ya oxygen mu electrolyte, kotero kuti electrode imayendetsedwa molakwika, ndiko kuti, kuthekera. kusiyana kumapangidwa.

Pamene chiŵerengero cha mpweya-mafuta ndi otsika (olemera osakaniza), pali mpweya wochepa mu mpweya wotuluka, kotero pali ma ion mpweya wochepa kunja kwa chubu ceramic, kupanga electromotive mphamvu pafupifupi 1.0V;

Pamene chiŵerengero cha mpweya-mafuta chikufanana ndi 14.7, mphamvu ya electromotive yomwe imapangidwira mkati ndi kunja kwa chubu cha ceramic ndi 0.4V ~ 0.5V, ndipo mphamvu ya electromotive iyi ndi mphamvu ya electromotive;

Pamene chiŵerengero cha mpweya-mafuta ndi okwera (osakaniza zowonda), mpweya okhutira mu mpweya wotayira ndi mkulu, ndi mpweya ion ndende kusiyana mkati ndi kunja kwa ceramic chubu ndi yaing'ono, kotero kwaiye electromotive mphamvu ndi otsika kwambiri, pafupi ndi zero.

Ntchito

Ntchito ya sensa ndiyo kudziwa zambiri ngati pali mpweya wochuluka muutsi pambuyo pa kuyaka kwa injini, ndiko kuti, mpweya wa okosijeni, ndikusintha zomwe zili ndi mpweya kukhala chizindikiro chamagetsi ndikuzitumiza ku kompyuta ya injini. kuti injiniyo imatha kuzindikira kuwongolera kotseka ndi mpweya wowonjezera ngati chandamale;kuonetsetsa;Chosinthira chothandizira chanjira zitatu chimakhala ndi kusinthika kwakukulu kwazinthu zitatu zowononga ma hydrocarbon (HC), mpweya wa carbon monoxide (CO) ndi ma nitrogen oxides (NOX) mu gasi wopopa, komanso kumakulitsa kutembenuka ndi kuyeretsa zowononga zotulutsa.

Cholinga

Masensa okosijeni amagwiritsidwa ntchito kwambiri m'mafakitale monga mafuta, mankhwala, malasha, zitsulo, kupanga mapepala, kuteteza moto, kayendetsedwe ka tauni, mankhwala, magalimoto, ndi kuwunika kwa mpweya.

YASEN ndi katswiri wamabizinesi opanga makina opanga ma VM oxygen sensors, ngati mukufuna kuyitanitsa, talandiridwa kuti mutilankhule!