Fluorescence dissolved oxygen meter yog ib qho cuab yeej siv los ntsuas qhov concentration ntawm cov pa oxygen hauv dej. Dissolved oxygen yog ib qho tseem ceeb ntawm cov dej hauv lub cev. Nws muaj qhov cuam tshuam tseem ceeb rau kev ciaj sia thiab kev yug me nyuam ntawm cov kab mob hauv dej. Nws kuj yog ib qho tseem ceeb ntawm kev ntsuas dej zoo. Lub fluorescence yaj oxygen meter txiav txim siab cov pa oxygen concentration hauv dej los ntawm kev ntsuas qhov siv ntawm cov teeb liab fluorescence. Nws muaj qhov rhiab heev thiab raug thiab siv dav hauv kev saib xyuas ib puag ncig, kev ntsuas dej zoo, aquaculture thiab lwm yam. Kab lus no yuav qhia meej txog cov ntsiab lus ua haujlwm, cov qauv tsim, kev siv thiab kev siv cov fluorescence yaj oxygen meter nyob rau hauv ntau qhov chaw.
1. Lub hauv paus ntsiab lus ua haujlwm
Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm fluorescence dissolved oxygen meter yog nyob ntawm kev sib cuam tshuam ntawm cov pa oxygen molecules thiab cov tshuaj fluorescent. Lub tswv yim tseem ceeb yog ua kom muaj cov khoom siv fluorescent kom qhov kev siv ntawm cov teeb liab fluorescent lawv emit yog proportional rau cov yaj oxygen concentration hauv dej. Cov hauv qab no yog cov lus piav qhia ntxaws txog txoj hauv kev ua haujlwm ntawm fluorescence yaj oxygen meter:
1. Cov khoom siv fluorescent: Cov tshuaj fluorescent uas muaj cov pa oxygen, xws li cov pa oxygen-sensitive fluorescent dyes, feem ntau yog siv hauv cov fluorescence yaj oxygen meters. Cov tshuaj fluorescent no muaj fluorescence siab siv thaum tsis muaj oxygen, tab sis thaum muaj cov pa oxygen, cov pa oxygen yuav ua rau cov tshuaj fluorescent, ua rau cov fluorescence siv tsis muaj zog.
2. Excitation light source: Fluorescence dissolved oxygen meters feem ntau yog nruab nrog lub teeb pom kev zoo rau excite cov tshuaj fluorescent. Qhov teeb pom kev zoo siab no feem ntau yog LED (lub teeb emitting diode) lossis laser ntawm ib lub wavelength tshwj xeeb. Lub wavelength ntawm lub excitation teeb qhov chaw feem ntau yog xaiv nyob rau hauv lub nqus wavelength ntau yam ntawm cov khoom fluorescent.
3. Fluorescence detector: Nyob rau hauv qhov kev txiav txim ntawm lub teeb excitation, cov tshuaj fluorescent yuav emit ib tug fluorescence teeb liab, qhov kev siv ntawm uas yog inversely proportional rau cov yaj oxygen concentration nyob rau hauv dej. Fluorometric dissolved oxygen meters yog nruab nrog lub fluorescence detector los ntsuas qhov siv ntawm cov teeb liab fluorescent.
4. Kev ntsuas cov pa oxygen: qhov kev siv ntawm cov teeb liab fluorescence yog ua tiav los ntawm Circuit Court hauv lub ntsuas, thiab tom qab ntawd hloov mus rau hauv cov nqi ntawm cov pa oxygen concentration. Tus nqi no feem ntau qhia hauv milligrams ib liter (mg/L).
2. Cov qauv tsim qauv
Cov txheej txheem muaj pes tsawg leeg ntawm fluorescence yaj oxygen meter feem ntau suav nrog cov hauv qab no:
1. Lub taub hau Sensor: Lub taub hau sensor yog ib feem ntawm kev sib cuag nrog cov qauv dej. Nws feem ntau suav nrog pob tshab fluorescent optical fiber lossis fluorescent diaphragm. Cov khoom siv no yog siv los ua kom haum cov tshuaj fluorescent. Lub taub hau sensor yuav tsum tsim tshwj xeeb los xyuas kom meej tias cov tshuaj fluorescent nyob rau hauv tag nrho kev sib cuag nrog cov qauv dej thiab tsis cuam tshuam los ntawm lub teeb sab nraud.
2. Excitation light source: Lub excitation light source feem ntau yog nyob rau sab sauv ntawm qhov ntsuas. Nws xa cov teeb pom kev zoo rau lub taub hau sensor los ntawm optical fiber lossis optical fiber kom zoo siab rau cov tshuaj fluorescent.
3. Fluorescence detector: Lub fluorescence detector yog nyob rau ntawm qhov qis ntawm lub ntsuas thiab yog siv los ntsuas qhov siv ntawm cov teeb liab fluorescence tawm ntawm lub taub hau sensor. Fluorescence detectors feem ntau suav nrog photodiode lossis photomultiplier raj, uas hloov cov teeb liab kho qhov muag rau hauv cov teeb liab hluav taws xob.
4. Cov khoom siv hluav taws xob ua haujlwm: Lub ntsuas hluav taws xob tau nruab nrog lub teeb liab ua haujlwm, uas yog siv los hloov qhov kev siv ntawm lub teeb liab fluorescence mus rau qhov muaj nuj nqis ntawm cov pa oxygen concentration, thiab tso rau ntawm qhov screen ntawm qhov ntsuas los yog tso tawm rau hauv lub computer. los yog cov ntaub ntawv kaw lus ntaus ntawv.
5. Control unit: Lub chaw tswj tau siv los teeb tsa qhov kev ua haujlwm ntawm lub ntsuas ntsuas, xws li kev siv lub teeb pom kev zoo, qhov nce ntawm lub ntsuas hluav taws xob fluorescence, thiab lwm yam. Cov kev ntsuas no tuaj yeem hloov kho raws li qhov xav tau los xyuas kom meej cov pa oxygen. kev ntsuas concentration.
6. Zaub thiab cov neeg siv interface: Fluorescence yaj oxygen meters feem ntau yog nruab nrog cov neeg siv-phooj ywg zaub thiab kev khiav hauj lwm interface rau displaying ntsuas, teeb tsa thiab kev khiav hauj lwm ntsuas.
3. Yuav siv li cas
Kev ntsuas cov pa oxygen dissolved siv lub fluorescence yaj oxygen meter feem ntau suav nrog cov kauj ruam hauv qab no:
1. Kev npaj cov cuab yeej: Ua ntej, xyuas kom meej tias lub cuab yeej ua haujlwm zoo. Tshawb xyuas tias lub teeb pom kev zoo thiab lub teeb pom kev fluorescence tau ua haujlwm zoo, lub sijhawm thiab hnub tim qhov ntsuas tau ntsuas, thiab seb cov tshuaj fluorescent puas yuav tsum tau hloov lossis rov ua dua.
2. Cov qauv sau: Sau cov qauv dej los kuaj thiab xyuas kom meej tias cov qauv no huv si thiab tsis muaj impurities thiab npuas. Yog tias tsim nyog, lub lim tuaj yeem siv los tshem tawm cov khib nyiab thiab cov khoom me me.
3. Kev teeb tsa Sensor: Ua tiav lub taub hau sensor rau hauv cov qauv dej kom ntseeg tau tias muaj kev sib cuag ntawm cov khoom siv fluorescent thiab cov qauv dej. Tsis txhob sib cuag ntawm lub taub hau sensor thiab lub thawv ntim phab ntsa lossis hauv qab kom tsis txhob ua yuam kev.
4. Pib ntsuas: Xaiv Pib Ntsuas ntawm kev tswj interface ntawm qhov ntsuas. Qhov ntsuas yuav cia li ua rau cov khoom siv fluorescent thiab ntsuas qhov siv ntawm cov teeb liab fluorescent.
5. Cov ntaub ntawv kaw tseg: Tom qab kev ntsuas tiav lawm, lub ntsuas ntsuas yuav pom qhov ntsuas ntsuas ntawm cov pa oxygen concentration. Cov txiaj ntsig tuaj yeem raug kaw rau hauv lub cim xeeb built-in ntawm lub ntsuas, lossis cov ntaub ntawv tuaj yeem raug xa tawm mus rau lwm lub cuab yeej rau kev khaws cia thiab tshuaj xyuas.
6. Kev tu thiab tu: Tom qab ntsuas, ntxuav lub taub hau sensor hauv lub sijhawm kom tsis txhob muaj cov tshuaj fluorescent residue los yog paug. Calibrate lub ntsuas tsis tu ncua los xyuas nws cov kev ua tau zoo thiab ruaj khov kom ntseeg tau tias qhov ntsuas tau raug.
4. Daim ntawv thov teb
Fluorescence yaj oxygen meters yog dav siv nyob rau hauv ntau lub teb. Cov hauv qab no yog qee qhov tseem ceeb ntawm daim ntawv thov:
1. Kev saib xyuas ib puag ncig: Cov fluorescence yaj oxygen meters yog siv los saib xyuas cov pa oxygen concentration hauv cov dej ntuj, dej ntws, pas dej, dej hiav txwv thiab lwm yam dej los ntsuas cov dej zoo ntawm lub cev dej thiab kev noj qab haus huv ntawm ecosystems.
2. Aquaculture: Hauv kev ua liaj ua teb ntses thiab cw, yaj cov pa oxygen yog ib qho tseem ceeb ntawm qhov tsis muaj. Fluorescence yaj oxygen meters tuaj yeem siv los saib xyuas cov pa oxygen concentration hauv cov pas dej yug me nyuam los yog cov dej hauv lub cev kom muaj sia nyob thiab kev loj hlob ntawm cov tsiaj ua liaj ua teb. .
3. Kev kho dej: Fluorescence dissolved oxygen meter tuaj yeem siv los saib xyuas cov pa oxygen concentration thaum lub sij hawm kho dej khib nyiab kom ntseeg tau tias cov dej khib nyiab ua tau raws li cov qauv tso tawm.
4. Kev tshawb fawb hauv hiav txwv: Hauv kev tshawb fawb marine scientific, fluorescence yaj oxygen meters yog siv los ntsuas cov pa oxygen concentration hauv dej hiav txwv ntawm qhov tob thiab qhov chaw sib txawv los kawm txog marine ecosystems thiab marine oxygen cycles.
5. Kev tshawb fawb hauv chav kuaj: Fluorescence dissolved oxygen meters kuj tseem siv rau hauv kev tshawb fawb lom neeg, ecological thiab ib puag ncig kev tshawb fawb hauv cov chaw soj nstuam los tshawb nrhiav cov pa oxygen dissolution dynamics thiab cov tshuaj lom neeg lom neeg nyob rau hauv cov xwm txheej sib txawv.
6. Hom lub koob npe nrov: Xaiv lub npe nrov thiab muaj npe nrov fluorescence yaj oxygen meter manufacturers, xws li YSI, Hach, Lianhua Technology, Thermo Fisher Scientific, thiab lwm yam, tuaj yeem txhim kho kev ntseeg siab ntawm cov cuab yeej thiab cov kev pab cuam tom qab muag zoo.
Lub fluorescence dissolved oxygen meter yog cov cuab yeej ua haujlwm siab, siab-rhiab heev siv los ntsuas cov pa oxygen concentration hauv dej. Nws txoj hauv kev ua haujlwm yog ua raws li kev sib cuam tshuam ntawm cov tshuaj fluorescent thiab oxygen, thiab muaj ntau yam kev siv, nrog rau kev saib xyuas ib puag ncig, kev ua dej hauv dej, kev kho dej, kev tshawb fawb hauv hiav txwv thiab kev tshawb fawb hauv chav kuaj. Vim li no, fluorescence yaj cov pa ntsuas pa ua lub luag haujlwm tseem ceeb hauv kev tswj hwm kev sib npaug ntawm cov dej hauv lub cev thiab tiv thaiv cov khoom siv dej.
Lianhua lub portable fluorescent yaj cov pa ntsuas LH-DO2M (V11) siv stainless hlau tag nrho kaw electrodes, nrog rau kev ntsuas dej tsis zoo ntawm IP68. Nws yog ib qho yooj yim rau kev khiav lag luam thiab yog tus pab cuam muaj zog hauv kev tshawb nrhiav cov dej phwj tuaj, cov dej khib nyiab thiab cov dej hauv chav kuaj. Kev ntsuas ntau ntawm cov pa oxygen yog 0-20 mg / L. Tsis tas yuav ntxiv electrolyte lossis nquag calibration, uas txo cov nqi kho mob.
Post lub sij hawm: Apr-12-2024
