Gas detectors kav ntev npaum li cas?
Ntau tus neeg muaj lus nug thaum siv lub tshuab ntsuas roj: nws yuav kav ntev npaum li cas? Ntau tus neeg siv xav tias lub tshuab ntsuas roj tuaj yeem siv tau kom txog thaum nws puas tag thiab siv tsis tau. Qhov tseeb, qhov no puas yog?
Qhov tseeb, kev pab cuam lub neej ntawm lub tshuab ntsuas roj yog nyob ntawm nws qhov tseem ceeb - lub sensor.
Peb paub tias tsis tuaj yeem muaj lub sensor tuaj yeem kuaj xyuas tag nrho cov pa roj kom tau raws li qhov yuav tsum tau muaj ntawm ntau yam gases thiab ntau qhov chaw siv lub sensor tsis zoo ib yam, tuaj yeem faib dav rau hauv: 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 Kev ntsuas ntawm cov sensors thiab sensors siv los kuaj xyuas qhov tawg concentration ntawm cov pa roj combustible.
1, feem ntau ntawm cov sensors siv los ntsuas qhov concentration ntawm cov pa roj carbon monoxide yog electrochemical sensors, nws yog raws li electrochemical lub hauv paus ntsiab lus ntawm kev ua hauj lwm sensors, lub ntsiab cuam tshuam rau nws lub neej yog electrolyte, dav sensors nyob rau hauv lub zoo tagnrho ib puag ncig tom qab 2-3 xyoo, cov khoom siv electrolyte tsis tuaj yeem ua haujlwm zoo lawm, yog li kev pabcuam lub neej ntawm electrochemical sensors yog 2-3 xyoo. 3 xyoo.
2, feem ntau ntawm cov sensors siv los xyuas qhov concentration ntawm combustible gases yog catalytic combustion sensors, uas muaj kev pab lub neej ntawm 3-5 xyoo nyob rau hauv zoo tagnrho tej yam kev mob. Tsis tas li ntawd, lub neej kev pab cuam ntawm cov khoom siv roj (nrog rau lub tswb ntsuas roj teeb thiab lub tswb hluav taws xob portable) muaj feem cuam tshuam rau qhov concentration nws raug.
Piv txwv li, yog tias lub sensor ntawm ammonia ntes tau txuas ntxiv mus rau 2ppm ammonia, nws lub neej expectancy yog ib xyoos (los yog 2ppm).
Piv txwv li, yog hais tias lub sensor nyob rau hauv ib tug ammonia detector yog tsis tu ncua mus rau 2ppm ammonia, nws yuav muaj lub neej ntawm kwv yees li ib xyoos (los yog 2ppm lub neej txhua xyoo), los yog rau lub hlis yog hais tias nws raug ammonia theem ntawm 4ppm. Qhov no ua rau ammonia sensor tsis haum rau siv hauv cov nroj tsuag chiv, qhov twg ammonia concentrations nruab nrab ntawm 20-30ppm.
Yog li ntawd, lub ntsiab tseem ceeb cuam tshuam rau lub neej ntawm lub sensor kuj nyob rau hauv ib puag ncig ib puag ncig nws yog nyob rau hauv lub vicious ntau lub neej luv, ua raws li los ntawm lub sensor mechanism. Sensor ncaj qha cuam tshuam rau kev siv cov cuab yeej siv roj, yog li kev siv lub sensor muaj kev txhawj xeeb txog lub xeev ntawm lub sensor kuj tseem txhawj xeeb txog peb tus kheej kev nyab xeeb.
