Post-Oxygen Sensor

Tam sim no, cov tsheb tau nruab nrog ob lub sensors oxygen, ib pem hauv ntej ntawm peb-txoj kev catalyst thiab ib qho qab nws. Txoj haujlwm ntawm pem hauv ntej yog txhawm rau txheeb xyuas cov pa roj sib piv ntawm lub cav, lub computer hloov kho cov roj kev ua haujlwm sib txawv thiab suav lub cav hluav taws xob raws li lub teeb liab no. Lub nraub qaum feem ntau yog los sim ua haujlwm ntawm peb-txoj kev catalytic converter! Piv txwv li tus nqi hloov dua siab tshiab ntawm cov catalyst. Nws yog ib qho tseem ceeb los kuaj seb peb-txoj kev catalyst ua haujlwm ib txwm (zoo los yog tsis zoo) los ntawm kev sib piv nrog cov ntaub ntawv ntawm cov pa pem hauv ntej oxygen sensor.

Muab Khoom Taw Qhia

Cov pa sensor siv Nernst lub ntsiab cai.

Nws cov ntsiab lus tseem ceeb yog ib qho ntxoo -2 ceramic raj-raj, uas yog cov khoom electrolyte, thiab nws ob sab yog sinter pt electrodes. Nyob rau ntawm qhov ntsuas kub, vim muaj cov pa roj oxygen sib txawv ntawm cov pa roj hluav taws xob (hauv 4- ees Ion Vempancies hauv electrolyte, uas ua rau hluav taws xob tsis zoo tau them, uas yog, qhov sib txawv yog tsim.

Thaum cov cua-roj piv yog tsawg (kev sib xyaw ua kom tsawg), tsis muaj oxygen rau cov pa pa, yog li cov pa hluav taws xob sab nraud ntawm 1.0V;

Thaum cov cua-roj piv sib npaug nrog 14.7, lub tshuab hluav taws xob uas tau tsim nyob rau sab hauv thiab sab nraud ntawm lub ceramic raj yog 0.4V ~ 0.5v, uas yog qhov siv hluav taws xob quab yuam;

Thaum cov cua-roj piv yog cov siab (nqaij ntshiv sib tov), ​​cov pa roj oxygen loj, thiab lub zog hluav taws xob yog qhov tsawg thiab ze rau xoom.

Rhaub oxygen sensor:

-Yuav muaj cov pa oxygen muaj cov tshuaj tiv thaiv muaj zog;

-Ib yog tsawg nyob ntawm kev tawm tsam, thiab tuaj yeem ua haujlwm li ib txwm muaj nyob rau hauv qis thauj thiab tsis tshua tawm kev tawm tsam;

-Quickly nkag mus rau lub Voj tswj-Voop tswj tom qab pib.