Kuyambitsa sensa ya okosijeni yachipatala, chifukwa chiyani RGM imafunikira sensor ya oxygen?

Masensa a okosijeni amagwiritsidwa ntchito kuyeza ndi kuyang'anira kuchuluka kwa mpweya wa okosijeni, mpweya womwe umakokedwa ndikutulutsidwa ndi wodwala wolumikizidwa ndi mpweya wabwino kapena makina opangira opaleshoni.
Sensa ya okosijeni mu chowunikira mpweya wopumira (RGM) imayesa kuchuluka kwa okosijeni (kapena) kupanikizika pang'ono kwa mpweya mu mpweya wopumira.
Masensa a okosijeni amadziwikanso kuti masensa a FiO2 kapena mabatire a O2, ndipo kachigawo kakang'ono ka mpweya wopumira (FiO2) ndi kuchuluka kwa okosijeni mu osakaniza agasi.Kagawo kakang'ono ka okosijeni kagawo kakang'ono ka gasi mu mpweya wa chipinda cha mumlengalenga ndi 21%, zomwe zikutanthauza kuti mpweya wa oxygen mu mpweya wa chipinda ndi 21%.
Chifukwa chiyani ma RGM amafunikira sensor ya oxygen?
Kuwunika konse kwa mpweya wopumira kumapangidwira kusuntha mpweya wosakanikirana ndi okosijeni kulowa ndi kutuluka m'mapapo a wodwala kuti athandize kupuma, kapena nthawi zina, kupereka kupuma kwa makina kwa wodwala amene kupuma kwake sikukwanira kapena thupi lake silingathe kupuma.
Panthawi ya mpweya wabwino, kuyeza koyenera kwa mpweya wopumira kumafunika.Makamaka, kuyeza okosijeni panthawi yolowera mpweya ndikofunikira chifukwa chakufunika kwake mu metabolism.Pankhaniyi, sensa ya okosijeni imagwiritsidwa ntchito kuwongolera ndi kuzindikira momwe wodwalayo amawerengera mpweya.Chofunikira chachikulu ndikupereka kuyeza kolondola kwa oxygen mu mpweya wopuma.Njira Zosiyanasiyana za Sensor Oxygen Medical
Electrochemical sensors
Fluorescent oxygen sensor
1. Electrochemical oxygen sensor
Electrochemical oxygen sensing elements are most used poyeza oxygen yomwe ili mumpweya wozungulira.Masensa awa amaphatikizidwa mu makina a RGM kuti athe kuyeza kuchuluka kwa mpweya.Amasiya kusintha kwa mankhwala mu sensing element, zomwe zimapangitsa kuti magetsi azitulutsa molingana ndi mulingo wa okosijeni.Masensa a Electrochemical amasintha mphamvu zamagetsi kukhala mphamvu yamagetsi kudzera mu oxidation ndi njira zochepetsera.Amapereka mphamvu yamagetsi ku chipangizocho molingana ndi kuchuluka kwa mpweya mu cathode ndi anode.Sensa ya okosijeni imagwira ntchito ngati gwero lapano, kotero kuyeza kwa voliyumu kumapangidwa kudzera pa choletsa katundu.Kutulutsa komweko kwa sensa ya okosijeni kumayenderana ndi kuchuluka kwa mpweya womwe umagwiritsidwa ntchito ndi sensa ya okosijeni.
2. Fluorescent oxygen sensor
Ma sensor a okosijeni a Optical amatengera mfundo ya fluorescence kuzimitsa mpweya.Amadalira kugwiritsa ntchito magwero a kuwala, zowunikira kuwala ndi zipangizo zounikira zomwe zimayendera kuwala.Masensa a okosijeni opangidwa ndi luminescence akulowa m'malo mwa masensa a okosijeni a electrochemical m'magawo ambiri.
Mfundo yozimitsa mpweya wa oxygen fluorescence yadziwika kalekale.Mamolekyu ena kapena mankhwala a fluoresce (mwachitsanzo, amatulutsa mphamvu yowunikira) akayatsidwa ndi kuwala.Komabe, ngati mamolekyu a okosijeni alipo, mphamvu ya kuwala imasamutsidwa kupita ku mamolekyu a okosijeni, zomwe zimapangitsa kuti fulorosisi ikhale yochepa.Pogwiritsa ntchito gwero la kuwala kodziwika, mphamvu yowunikira yomwe yazindikirika imayenderana mosagwirizana ndi kuchuluka kwa mamolekyu a okosijeni mu zitsanzo.Choncho, fulorosisi yocheperako imadziwika, mamolekyu ambiri a okosijeni ayenera kukhalapo mu mpweya wa chitsanzo.