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Taw qhia txog kev kho mob oxygen sensor, vim li cas RGM thiaj xav tau oxygen sensor?

Cov pa oxygen sensors yog siv los ntsuas thiab saib xyuas cov pa oxygen concentration, cov pa nqus pa thiab nqus pa los ntawm tus neeg mob txuas nrog lub tshuab ua pa lossis lub tshuab ua pa.
Cov pa oxygen sensor hauv lub ntsuas pa roj pa (RGM) ntsuas cov pa oxygen concentration (lossis) oxygen ib nrab siab hauv cov pa sib xyaw ua pa.
Cov pa oxygen sensors tseem hu ua FiO2 sensors lossis O2 roj teeb, thiab feem ntawm cov pa nqus pa (FiO2) yog qhov concentration ntawm oxygen hauv cov roj sib xyaw.Kev tshoov siab oxygen feem ntawm cov roj sib xyaw hauv chav huab cua yog 21%, uas txhais tau hais tias cov pa oxygen hauv chav cua yog 21%.
Vim li cas RGMs xav tau oxygen sensor?
Txhua qhov kev soj ntsuam cov pa roj pa yog tsim los txav cov pa sib xyaw ntawm cov pa thiab oxygen mus rau hauv thiab tawm ntawm tus neeg mob lub ntsws los pab ua pa, lossis qee zaum, muab cov tshuab ua pa rau tus neeg mob uas nws ua pa tsis txaus lossis nws lub cev ua tsis taus pa.
Thaum lub sij hawm ua pa, ntsuas meej ntawm cov pa sib xyaw ua pa yuav tsum tau ua.Hauv particular, ntsuas cov pa oxygen thaum lub qhov cua yog qhov tseem ceeb vim nws qhov tseem ceeb hauv cov metabolism.Hauv qhov no, lub ntsuas pa oxygen yog siv los tswj thiab txheeb xyuas tus neeg mob cov khoom siv oxygen.Qhov kev xav tau tseem ceeb yog muab kev ntsuas qhov tseeb ntawm cov ntsiab lus oxygen hauv cov pa ua pa.Txawv Mechanisms ntawm Kev Kho Mob Oxygen Sensors
Electrochemical sensors
Fluorescent oxygen sensor
1. Electrochemical oxygen sensor
Electrochemical oxygen sensing ntsiab yog tsuas yog siv los ntsuas cov ntsiab lus oxygen nyob rau hauv ambient huab cua.Cov sensors no tau muab tso rau hauv lub tshuab RGM los ntsuas qhov concentration ntawm cov pa oxygen.Lawv tawm cov tshuaj hloov pauv hauv qhov ntsuas qhov ntsuas, uas ua rau muaj hluav taws xob tso zis proportional rau qib oxygen.Electrochemical sensors hloov tshuaj lub zog rau hauv hluav taws xob hluav taws xob los ntawm oxidation thiab txo cov txheej txheem.Nws muab hluav taws xob tso zis rau cov cuab yeej proportional rau feem pua ​​​​ntawm cov pa oxygen hauv cathode thiab anode.Cov pa oxygen sensor ua raws li qhov tam sim no, yog li ntsuas qhov ntsuas hluav taws xob tau ua los ntawm cov khoom siv hluav taws xob.Cov zis tam sim no ntawm oxygen sensor yog proportional rau tus nqi ntawm oxygen noj los ntawm oxygen sensor.
2. fluorescent oxygen sensor
Optical oxygen sensors yog ua raws li lub hauv paus ntsiab lus ntawm fluorescence quenching ntawm oxygen.Lawv cia siab rau kev siv lub teeb pom kev zoo, lub teeb pom kev thiab cov khoom siv luminescent uas ua rau lub teeb pom kev zoo.Luminescence-raws li oxygen sensors hloov electrochemical oxygen sensors hauv ntau qhov chaw.
Lub hauv paus ntsiab lus ntawm molecular oxygen fluorescence quenching tau ntev tau paub.Qee cov molecules lossis cov tshuaj fluoresce (piv txwv li, emit lub teeb lub zog) thaum raug lub teeb.Txawm li cas los xij, yog tias muaj cov pa oxygen molecules, lub teeb lub zog raug xa mus rau cov pa oxygen molecules, uas ua rau cov fluorescence tsawg dua.Los ntawm kev siv lub teeb pom kev zoo, lub teeb pom kev zoo yog qhov sib npaug ntawm cov pa oxygen molecules hauv cov qauv.Yog li, qhov tsawg dua fluorescence raug kuaj pom, ntau cov pa oxygen molecules yuav tsum muaj nyob hauv cov qauv roj.


Post lub sij hawm: Aug-05-2022