Peb lub npe nrov roj ntes tau muab piv rau.
1. Kev tshuaj xyuas cov yam ntxwv ntawm cov khoom siv hluav taws xob semiconductor
Semiconductor sensor gas detectors yog tsim los ntawm kev hloov pauv hauv kev ua haujlwm. Kev tiv thaiv ntawm tin dioxide yuav txo qis sai thaum nws ntsib cov pa roj cawv ntawm qhov kub thiab txias, thiab lub ntsuas dej cawv tau npaj raws li txoj cai no. Qhov sensor no muaj cov yam ntxwv ntawm tus nqi qis thiab yog qhov tsim nyog rau kev kuaj xyuas cov pa roj av. Ib puag ncig yam muaj feem cuam tshuam loj heev rau cov khoom siv hluav taws xob semiconductor sensor gas detectors, ua rau cov txiaj ntsig tsis ruaj khov. Ntxiv mus, qhov tso zis tsis tau ntawm qhov ntsuas roj no tsis tuaj yeem txiav txim siab, yog li nws tsis haum rau qhov chaw uas yuav tsum tau ntsuas qhov tseeb.
2. Kev soj ntsuam ntawm cov yam ntxwv ntawm combustion sensors
Lub combustion sensor npaj cov txheej txheem kub-resistant catalyst nyob rau saum npoo ntawm platinum resistor. Thaum qhov kub thiab txias txaus, cov roj hluav taws xob yuav raug catalyzed thiab hlawv. Lub combustion yuav ua rau kom qhov kub thiab txias ntawm platinum resistor thiab muaj kev cuam tshuam cov concentration ntawm cov roj flammable los ntawm kev ua hauj lwm. Kev tshawb nrhiav ntau yam ntawm cov catalytic combustion sensor gas detector tsuas yog suav nrog cov pa roj carbon monoxide, thiab lub sensor yuav tsis hnov mob yog tias cov roj tsis tuaj yeem hlawv. Lub catalytic combustion gas detector teb kom raug thiab sai thiab muaj lub neej ua haujlwm ntev.
3. Kev soj ntsuam ntawm hom electrochemical sensors
Ib feem ntawm nws cov nplaim taws, muaj kuab lom thiab tsis zoo yog cov khoom siv hluav taws xob thiab tuaj yeem ua rau electrochemically oxidized lossis txo. Lub hauv paus ntsiab lus ntawm thawj lub roj teeb hom roj sensor yog roughly tib yam li cov roj teeb qhuav. Tam sim no, kev tshawb pom ntawm cov pa phem thiab cov pa phem feem ntau yog nyob ntawm qhov muaj peev xwm electrolytic cell type gas sensors. Concentration roj teeb hom roj sensor tuaj yeem tsim cov concentration electromotive quab yuam cuam tshuam nrog roj concentration thiab ntes roj concentration, xws li oxygen sensor rau tsheb.
