Cov txheej txheem ntawm kev kuaj xyuas cov tshuaj lom thiab tsis muaj pa phem
Thaum siv cov cuab yeej siv roj los tshawb xyuas cov pa roj carbon monoxide, peb kuj muaj ntau yam kev tshawb nrhiav roj av xaiv los ntawm. Nyob rau tib lub sijhawm, tam sim no tsis muaj kev siv tshuab uas tuaj yeem ua tau sai, pheej yig, thiab daws tau qhov teeb meem ntawm kev tshawb nrhiav cov pa roj tshwj xeeb. Yog li ntawd, thaum xaiv txoj kev kuaj xyuas cov pa uas tsim nyog, peb kuj yuav tsum xav txog thiab xav txog ntau yam.
1. Xim raj ntsuas tshuab
Ntxiv nrog rau kev siv tshuaj lom lub tswb ceeb toom, colorimetric tube thev naus laus zis tam sim no yog siv los ua ib txoj hauv kev tshawb nrhiav cov pa phem thiab cov pa phem hauv kev tiv thaiv ib puag ncig. Qhov txiaj ntsig loj tshaj plaws 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.
2. Electrochemical sensors
Electrochemical sensors yog tam sim no feem ntau pom thiab paub tab technology rau kev kuaj tshuaj lom thiab teeb meem gases nyob rau hauv portable gas detectors. Cov yam ntxwv ntawm electrochemical sensors yog me me, tsawg zog noj, zoo linearity thiab repeatability, thiab ntev lifespan.
3. Semiconductor sensors
Semiconductor sensors yog cov khoom tsim los ntawm cov hlau oxides lossis hlau semiconductor oxide cov ntaub ntawv. Lawv tuaj yeem tsim qhov adsorption los yog cov tshuaj tiv thaiv thaum cuam tshuam nrog cov pa roj, ua rau cov khoom siv hluav taws xob lossis cov yam ntxwv voltammetry lossis cov kev hloov pauv ntawm cov khoom siv thauj khoom. 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.
4. Ionization ntes
Tam sim no, cov ionization detectors uas tuaj yeem pom hauv khw tau muab faib ua photodetectors (PID) thiab nplaim ionization detectors (FID). Lawv yog cov khoom siv tshuaj lom neeg feem ntau siv hauv cov khoom siv roj chromatography. Ua ob lub sensors rau hauv cov cuab yeej sib cais tau dhau los ua txoj hauv kev siv ntau tshaj plaws los kuaj xyuas cov organic tebchaw.
