I-sensor ye-oksijini ibuyisela ulwazi lokugxininiswa kwegesi edibeneyo kwi-ECU ngokufumanisa umxholo we-oksijini kwi-injini yokukhupha igesi, kwaye ifakwe kwi-exhaust pipe phambi kwe-catalyst yeendlela ezintathu.

Into enovakalelo yenzwa yeoksijini esetyenziselwa ukuvelisa umbane wombane yizirconium dioxide (ZrO2), enomaleko weplatinam kumphezulu wayo ongaphandle, kunye nomaleko weseramikhi ngaphandle kweplatinam ukukhusela iplatinam electrode. Icala elingaphakathi le-sensor ye-oxygen sensor ibonakaliswe emoyeni, kwaye icala langaphandle lidlula kwi-gas ephumayo ekhutshwe yi-injini. Xa ubushushu besixhobo soluvo bungaphezulu kwe-300℃, ukuba umxholo weoksijini kumacala omabini wahluke kakhulu, amandla ombane ombane aya kuveliswa macala omabini. Umxholo we-oksijini ngaphakathi kwi-sensor uphezulu ngenxa yokuba ifakwe umoya emoyeni. Xa umxube uncinci, umxholo weoksijini kwigesi yokukhupha uphezulu. Umahluko womxholo we-oksijini phakathi kwamacala amabini we-sensor uncinci kakhulu, ngoko ke amandla e-electromotive eyenziwa yiyo nawo amancinci kakhulu (malunga ne-0.1V). Nangona kunjalo, xa umxube utyebile kakhulu, umxholo we-oksijini kwigesi yokukhupha incinci kakhulu, umehluko woxinzelelo lwe-oksijini phakathi kwamacala amabini e-elementi ebuthathaka mkhulu, kwaye i-electromotive force eyenziwe nayo inkulu (malunga ne-0.8V). Isifudumezi esingaphakathi kwinzwa yeoksijini sisetyenziselwa ukufudumeza into ebuthathaka ukuze isebenze ngokuqhelekileyo.

Ukuba i-sensor ye-oxygen ayinayo imveliso yesignali okanye isignali yokuphuma ayiqhelekanga, iya kwandisa ukusetyenziswa kwepetroli kunye nokukhupha ungcoliseko lwe-injini, okukhokelela kwisantya esingazinzanga sokungenzi nto, ukutshatyalaliswa komlilo kunye nokuxoxa. Iimpazamo eziqhelekileyo zenzwa ye-oxygen zezi:

1) Ityhefu yeManganese. Nangona i-petroli ekhokelayo ingasasetyenziswa, i-agent ye-antiknock kwi-petroli iqulethe i-manganese, kunye ne-manganese ion okanye i-manganate ion emva kokutsha iya kukhokelela kumphezulu we-oxygen sensor, ukuze ingakwazi ukuvelisa izibonakaliso eziqhelekileyo.

2) Ukufakwa kwekhabhoni. Emva kokuba umphezulu wephepha leplatinum yenzwa ye-oxygen i-carbon-deposit, izibonakaliso eziqhelekileyo zombane azikwazi ukuveliswa.

3) Akukho mveliso yombane wesignali ngenxa yoqhagamshelwano olubi okanye isiphaluka esivulekileyo kwisiphaluka sangaphakathi senzwa ye-oxygen.

I-4) I-ceramic element ye-sensor ye-oksijini yonakalisiwe kwaye ayikwazi ukuvelisa isignali yombane eqhelekileyo.

I-5) Intambo yokumelana ne-oxygen sensor heater itshiswa okanye isiphaluka sayo siphukile, okwenza inzwa ye-oksijeni ingakwazi ukufikelela kwiqondo lokushisa eliqhelekileyo lokusebenza ngokukhawuleza.