Njira Zosiyanasiyana za Sensor Oxygen Medical

Njira zosiyanasiyana zamasensa a okosijeni azachipatala ndi: masensa a electrochemical, masensa a okosijeni a fulorosenti

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.

Kutulutsa kwamagetsi a electrochemical sensor nthawi zambiri kumayesedwa mu ma microamp (a).Izi zimachitika pamene ma elekitironi amadutsa mu njira ya okosijeni pa anode ndi ayoni amafalikira mu njira ya electrolyte kuchokera ku njira yochepetsera mpweya pa cathode.

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.

Mu masensa ena, fluorescence imadziwika kawiri mkati mwa nthawi yodziwika.M'malo moyeza kuchuluka kwa fluorescence, kuchepa kwa fluorescence pakapita nthawi (ie, kuzimitsa kwa fluorescence) kumayesedwa.Njira yotengera nthawi yowola iyi imalola kupanga mapangidwe osavuta a sensa.

Kachipangizo kamene kamayendera mpweya wa okosijeni LOX-02-F ndi kachipangizo kamene kamagwiritsa ntchito kuzimitsa kwa okosijeni wa fulorosenti kuyeza milingo ya okosijeni yozungulira.Ngakhale ili ndi mawonekedwe ofanana a columnar ndi kukula kwa 4-series monga ma electrochemical sensors wamba, simamwa mpweya ndipo imakhala ndi mwayi wokhala ndi moyo wautali (zaka 5).Izi zimapangitsa kuti zikhale zothandiza pazida monga ma alarm achitetezo akuchepa kwa okosijeni m'chipinda omwe amawunika kutsika kwadzidzidzi kwa mpweya mugasi wopanikizidwa wosungidwa mumpweya wamkati.