Piav qhia seb yuav ua li cas thiaj li nrhiav tau thiab cais cov khoom siv roj
Txhawm rau nkag siab txog qhov tsis muaj thiab cov ntaub ntawv muaj feem cuam tshuam ntawm koj lub ntsuas hluav taws xob, qhov no ua kom qhov tseeb ntawm qhov ntsuas qhov ntsuas thiab tsis ua rau lub ntsuas puas. Lub hauv paus ntawm lub ntsuas roj yog lub sensor. Nyob rau hauv luv luv, kev faib tawm ntawm cov sensors yog kev faib cov roj detectors. Niaj hnub no, peb yuav qhia txog lub hauv paus ntsiab lus ntawm kev tshawb nrhiav thiab kev siv cov roj av detectors.
Lub tshuab ntsuas roj yog ib qho ntawm cov cuab yeej tshawb nrhiav kev nyab xeeb uas siv nws tus kheej cov cuab yeej siv los kuaj xyuas cov pa phem thiab cov pa phem thiab tsim cov lus ceeb toom. Txoj kev tshawb nrhiav thiab hom tuaj yeem faib ua kwv yees li hauv qab no:
1. Electrochemical sensors feem ntau yog siv thiab paub txog kev paub txog cov thev naus laus zis txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm Cov yam ntxwv ntawm electrochemical sensors yog me me, tsawg zog noj, zoo linearity thiab repeatability, thiab ntev lifespan.
2. Ntxiv nrog rau kev siv lub tswb nrov roj, lub tshuab ntsuas lub raj colorimetric kuj yog ib txoj hauv kev nrhiav kom tau cov pa phem thiab cov pa phem uas tam sim no siv hauv kev tiv thaiv ib puag ncig. Qhov kom zoo dua ntawm txoj kev ntsuas no raws li tshuaj lom neeg cov tshuaj tiv thaiv yog tias nws tuaj yeem them nyiaj rau qhov tsis muaj qhov tsim nyog nrhiav pom tau ntsib thaum siv cov cuab yeej rau kev ntsuas.
3. Ionization detectors tam sim no muaj nyob rau hauv kev ua lag luam tau muab faib ua cov duab ionization detectors (PID) thiab nplaim ionization detectors (FID), uas yog feem ntau siv cov pa roj toxic detectors hauv gas chromatography instruments. Ua ob lub sensors sib cais rau hauv cov twj paj nruag tau dhau los ua ib txoj hauv kev tshawb nrhiav kom pom cov organic tebchaw tsis zoo.
4. Semiconductor sensor toxic gas detector. Semiconductor sensor yog ib qho kev tshawb nrhiav uas ua los ntawm cov hlau oxides lossis hlau semiconductor oxide cov ntaub ntawv. Thaum lub tshuab laser txiav cuam tshuam nrog cov roj, nws tuaj yeem tsim qhov adsorption lossis cov tshuaj tiv thaiv, ua rau cov khoom siv hluav taws xob lossis cov yam ntxwv voltammetry lossis cov kev hloov pauv uas muaj peev xwm ua rau lub cev txav mus los. Nws tuaj yeem siv los txheeb xyuas cov pa roj carbon monoxide nrog qhov feem pua ntawm cov concentration, nrog rau cov pa roj carbon monoxide ntawm qib ppm.
Gas detectors feem ntau yuav siv tau nyob rau hauv ntau qhov chaw, thiab siv lawv nyob rau hauv qhov tseeb ib puag ncig yuav ua kom ruaj khov thiab txij nkawm zaus ntawm lub tshuab. Feem ntau, cov khoom siv roj av feem ntau yog siv rau hauv thaj chaw xws li petrochemicals, kev tsim khoom lag luam thiab kev tsim cov ntxhia, cov pa taws thiab cov pa roj ib puag ncig saib xyuas, kev kho dej phwj tuaj, biopharmaceuticals, kev tiv thaiv ib puag ncig hauv tsev, tsev kawm ntawv chav kuaj, thiab lwm yam.
Gas Detector yog ib qho cuab yeej siv feem ntau siv rau kev kuaj pom cov pa hauv qhov chaw cia roj. Tshwj xeeb tshaj yog tsim nyog rau kev siv nyob ib ncig ntawm cov txheej txheem txheej txheem cov khoom siv, cov kav dej, thiab nkag mus rau qhov chaw nqaim. Kev ua haujlwm ib leeg, cov cuab yeej suav nrog lub twj tso kua mis thiab cov qauv ntsuas cov pas nrig (kom pom qhov chaw ntawm qhov xau), cov cim loj, thiab lub teeb pom kev tom qab, xyuas kom meej qhov kev nyeem ntawv pom tseeb ntawm cov pa roj concentration hauv qhov tsaus ntuj thiab tsaus ntuj. .
