Abantu baphefumla umoya yonke imihla, kuba umoya uneoksijini, esisiseko sokugcina ubomi babantu.Ihemoglobin ephantsi equlethwe emizimbeni yabantu idibana neoksijini efakwe emiphungeni yenze ioksijini kunye nehemoglobin.Ioksijeni iyachithwa kwiplasma ukuze kugcinwe i-metabolism yeeseli zezicubu.Inzwa ye-oxygen inokulinganisa ipesenti ye-hemoglobin egazini lomzimba womntu kwigazi lonke.Oku kulandelayo kuchaza indima yesivamvo se-oxygen yegazi:
Inzwa yeoksijini yegazi inokulinganisa ukugcwala kweoksijini egazini emzimbeni womntu.Ukuzaliswa kweoksijini yegazi kubhekiselele kwipesenti yehemoglobin eneoksijini esegazini labantu egazini.I-blood saturation ye-oxygen sisalathisi esibalulekileyo sokulinganisa isigulane.Inzwa ye-oksijini yegazi yahlulwe kwiimilo ezahlukeneyo, ezizezi uhlobo lomnwe, uhlobo lwe-earlobe kunye nohlobo lokunamathela ebunzi.Kungakhathaliseki ukuba yiyiphi imilo, ingundoqo ye-sensor ye-oksijeni yegazi isafana, ehlanganiswe nezixhobo ezikhupha ukukhanya kunye nezixhobo zokufumana.Isixhobo esikhupha ukukhanya senzwa ye-oxygen yegazi yenziwe ityhubhu yokukhanya kwe-infrared, kwaye umamkeli we-photosensitive we-sensor ye-oxygen yegazi wamkela i-PIN ye-photosensitive diode, eguqula umqondiso wokukhanya ofunyenweyo kwisiganeko sombane, kwaye wamkele iteknoloji ephezulu yenze itshintshe.Xa isetyenziswa, indawo yokufumana iba nkulu, uvakalelo luphezulu, umsinga omnyama uncinci, kwaye ingxolo iphantsi.Indlela yokuqhuba yesivamvo se-oxygen yegazi eneneni isebenzisa ii-diode ezimbini ezikhupha ukukhanya kunye ne-photosensitive yokwamkela ityhubhu ukuqonda indlela yokulinganisa i-double-beam yokulinganisa ukugcwala kwe-oksijini yegazi.Ukusetyenziswa kwale ndlela yokuqhuba i-pulse ayinakuphucula kuphela ngokukhawuleza Ukongeza ekunciphiseni ukusetyenziswa kwamandla, kunokwandisa ubomi benkonzo yexesha.I-sensor ye-oxygen yegazi iphinda ithathe indlela yokulinganisa i-optical, eyona ndlela yokulinganisa i-oksijeni yegazi eqhubekayo kunye nengonakalisi, engayi kubangela intlungu kunye nemiphumo emibi emzimbeni womntu.
Ixesha lokuposa: Jun-08-2022