Txheej txheem cej luam ntawm cov ntsiab lus ntawm cov khoom lag luam thiab kev faib tawm ntawm cov ntsuas oxygen yaj
Lub Dissolved oxygen analyzer yog raws li lub hauv paus ntsiab lus ntawm electrochemistry, uas yog, oxidation-txo cov tshuaj tiv thaiv yuav tshwm sim ntawm ob qhov sib txawv hlau sensors hauv cov tshuaj electrolyte uas muaj cov pa oxygen, thiab qhov tshwm sim tam sim no thiab cov pa oxygen concentration hauv cov tshuaj yuav yog ib qho cuab yeej rau kev ntsuas. cov ntsiab lus oxygen hauv dej raws li lub hauv paus ntsiab lus ntawm ib qho kev sib raug zoo. Qee cov cuab yeej kuj siv txoj kev ji spectrum hauv kev ntsuas voltammetric. Tom qab siv qhov hluav taws xob mus rau lub ntsuas hluav taws xob ua haujlwm hauv kev daws teeb meem, tam sim no ntawm cov khoom tsim ji spectrum muaj qee qhov kev sib raug zoo nrog cov concentration ntawm cov tshuaj ntsuas hauv cov tshuaj.
Lub sensor yaj oxygen tuaj yeem siv los ntsuas cov ntsiab lus oxygen yaj hauv cov kua dej ntawm cov qauv uas tau sim ntawm qhov chaw lossis hauv chav kuaj. Txij li thaum yaj cov pa oxygen yog ib qho ntawm cov cim tseem ceeb ntawm cov dej zoo, cov pa oxygen yaj cov sensors tuaj yeem siv dav los ntsuas cov pa oxygen hauv ntau qhov xwm txheej, tshwj xeeb tshaj yog nyob rau hauv dej aquaculture, photosynthesis thiab ua pa, thiab ntsuas ntawm qhov chaw. Thaum ntsuas lub peev xwm ntawm cov kwj dej thiab cov pas dej los txhawb kev muaj sia nyob, kev sim biochemical oxygen xav tau (BOD) yog ua, ntsuas cov qauv aqueous tov uas muaj cov organic teeb meem uas siv cov pa oxygen thaum nws dhau los ua putrefactive, thiab txiav txim siab cov pa oxygen concentration thiab cov qauv aqueous tov kev sib raug zoo. nruab nrab ntawm qhov kub thiab txias. Nws qhov ntsuas ntau: 0~5, 10, 20 mg / L, qhov tseeb ± 3% 5%, thiab lub sijhawm teb ntawm 30 ~ 120 s. Muaj ob pawg: kev soj ntsuam online txuas ntxiv thiab cov cuab yeej kuaj mob.
Ib lub ntsuas oxygen yaj tau ntsuas cov pa oxygen yaj hauv cov kua dej. Oxygen yog yaj nyob rau hauv dej los ntawm ib puag ncig huab cua, huab cua txav, thiab photosynthesis. Dissolved oxygen sensors tuaj yeem siv los ntsuas thiab saib xyuas cov txheej txheem uas cov pa oxygen tuaj yeem cuam tshuam rau cov tshuaj tiv thaiv, kev ua haujlwm zoo, lossis ib puag ncig. Lub ntsuas pa oxygen yaj muaj cov yam ntxwv ntawm kev txhim kho yooj yim, lub voj voog ntev ntev (3 mus rau 4 lub hlis), kev tsis haum rau lwm yam tshuaj, thiab muaj peev xwm los saib xyuas kev siv cov txheej thiab sab hauv electrolyte. Feem ntau, cov electrolyte thiab txheej yog hloov txhua ib mus rau peb xyoos.
Kev ua kom cov pa oxygen kom zoo yog qhov tseem ceeb rau cov dej zoo, thiab txhua yam kev ua neej yuav tsum muaj oxygen. Cov txheej txheem dej lim dej ntuj tsim nyog yuav tsum muaj cov ntsiab lus ntawm cov pa oxygen kom muab cov ntaub ntawv aerobic lub neej. Yog tias cov pa oxygen hauv dej qis dua 5.0mg/L, nws yuav nyuaj rau cov kab mob hauv dej kom ciaj sia. Qhov qis dua qhov concentration, qhov nyuaj dua.
Dissolved oxygen meters tau muab faib ua ob peb pawg:
1. Raws li portable, nws muab faib ua: portable yaj oxygen meter, desktop yaj oxygen meter thiab cwj mem-hom yaj oxygen meter.
2. Muab faib raws li kev siv: kuaj yaj oxygen meter, muaj hauv internet yaj oxygen meter, thiab lwm yam.
3. Raws li qib ntawm qhov tseeb, nws tau muab faib ua: kev lag luam yaj oxygen meter, ntse yaj oxygen meter, high-precision yaj oxygen meter los yog muab faib ua pointer hom dissolved oxygen meter thiab digital zaub hom yaj oxygen meter.
4. Tus cwj mem-hom yaj oxygen meters feem ntau yog ua nrog ib qho ntau thiab qhov ntsuas nqaim, ua rau lawv cov cuab yeej yooj yim tshaj plaws.
