Qhov sib txawv thiab kev sib txuas ntawm acidity meters, pH meters, thiab ion meters
Acidity yog hais txog tag nrho cov khoom hauv dej uas tuaj yeem ua rau lub hauv paus muaj zog. Lub ntsiab lus ntawm pH tus nqi yog raws li nram no: pH{{0}} lg {H ntxiv } 1. Tus nqi ntawm acidity siab dua, lub zog acidity ntawm cov tshuaj 2. Tsis hais qhov kub thiab txias, AG ntawm ib Cov tshuaj nruab nrab yog ib txwm 0. Tsis zoo li qhov no, nws yog ib qho kev cai rau kev xav tias cov tshuaj nruab nrab ntawm 25 degrees Celsius muaj pH ntawm 7, thaum pH ntawm nruab nrab cov ntsiab lus ntawm lwm qhov kub tsis yog 7. Tsis tas li ntawd, qhov ntau ntawm acidity AG yog R, thaum ib txwm muaj pH yog 0-14
Acidity meter yog ib qho cuab yeej siv thiab cov cuab yeej siv, feem ntau yog siv los ntsuas pH tus nqi ntawm cov kua xov xwm. Nruab nrog cov ion xaiv electrodes sib xws, nws tuaj yeem ntsuas MV tus nqi ntawm ion electrode peev xwm. Nws yog dav siv hauv kev lag luam, kev ua liaj ua teb, kev tshawb fawb tshawb fawb, kev tiv thaiv ib puag ncig, thiab lwm yam. Acidity meter yog ib qho cuab yeej siv los ntsuas pH tus nqi ntawm cov kev daws teeb meem. Lub cev tseem ceeb ntawm acidity meter yog qhov tseeb potentiometer. Thaum ntsuas, ntxig cov hluav taws xob sib xyaw rau hauv cov kev daws teeb meem los ntsuas, thiab cov hluav taws xob sib txawv yuav raug tsim tawm vim qhov sib txawv acidity (hydrogen ion concentration) ntawm cov tshuaj yuav tsum ntsuas. Amplify nws los ntawm DC amplifier, thiab thaum kawg taw tes tawm pH tus nqi ntawm cov tshuaj yuav tsum tau ntsuas los ntawm qhov ntsuas ntsuas (Voltmeter). Lub ntsuas acidity tuaj yeem siv nyob rau hauv pH ntau ntawm 0-14.
Muaj ntau hom acidity meters, xws li desktop, portable, thiab phenotypic. Muaj ob hom kev nyeem ntawv ntsuas: digital thiab pointer
Lub pH meter yog ib qho cuab yeej siv thiab khoom siv, feem ntau yog siv los ntsuas pH tus nqi ntawm cov kua dej. Coupled nrog coj ion xaiv electrodes, nws tseem tuaj yeem ntsuas MV tus nqi ntawm ion electrode muaj peev xwm, thiab siv dav hauv kev lag luam, kev ua liaj ua teb, kev tshawb fawb, kev tiv thaiv ib puag ncig, thiab lwm yam.
Kev faib tawm ntawm pH pH meters:
Raws li qhov xav tau ntawm kev tsim khoom thiab lub neej niaj hnub, tib neeg tau tshawb fawb thiab tsim ntau hom pH ntsuas: raws li kev ntsuas qhov tseeb, lawv tuaj yeem muab faib ua {{0}}.2, 0. 1, 0.01 lossis siab dua qib.
Raws li qhov ntim ntawm qhov ntsuas, muaj hom cwj mem (hom mini), portable, desktop, thiab online nruam xyuas thiab ntsuas hauv online hom. Raws li cov kev xav tau ntawm kev siv, cwj mem (mini) thiab portable pH meters feem ntau yog coj mus rau qhov chaw kuaj los ntawm cov neeg ua haujlwm kuaj. Qhov tseeb theem ntawm kev xaiv pH meter yog txiav txim siab los ntawm qhov tseeb xav tau rau cov neeg siv ntsuas
