Temperature Compensation hauv pH ntsuas
Ib qho tseem ceeb tshaj plaws uas yuav tsum tau xav txog thaum ntsuas pH tus nqi ntawm kev daws yog qhov kub thiab txias. Thaum qhov kub ntawm cov tshuaj hloov pauv, tus nqi pH ntawm cov tshuaj kuj tseem muaj kev hloov pauv loj. Tus nqi ntawm qhov kev hloov pauv no tsis yog qhov yuam kev hauv pH nyeem ntawv, tab sis qhov tseeb pH tus nqi ntawm cov tshuaj ntawm qhov kub thiab txias. Kev hloov pauv kub yuav ua rau muaj kev hloov pauv ntawm qhov ntsuas hluav taws xob ntsuas, ua rau kev ntsuas yuam kev. Qhov kev ua yuam kev no yog kwv yees tau thiab tuaj yeem daws tau los ntawm electrode calibration thoob plaws tag nrho qhov kub thiab txias kho thaum ntsuas tom ntej. Qhov zoo tshaj plaws electrode yog ib qho hluav taws xob uas raug xa rov qab mus rau xoom ntawm pH =7. Ntawm pH =7, qhov ntsuas kub ntawm electrode rhiab heev tuaj yeem tsis quav ntsej. Txawm li cas los xij, feem ntau pH electrodes tsis zoo electrodes thiab raug kev txom nyem los ntawm electrode rhiab heev teeb meem vim kub hloov. Qhov kev ua yuam kev ntawm qhov kub thiab txias yog ze rau 0.003 PH /℃/ tus naj npawb ntawm PH units deviating los ntawm PH=7. Nyob rau hauv cov ntaub ntawv no, lub pH meter yuav tsum tau calibrated siv qhov kho qhov tseem ceeb ntawm 0.003. Qhov kev them nyiaj no tuaj yeem ua tiav siv lub ntsuas kub ntsuas ntsuas. Tom qab ntawd, qhov ntsuas kub ntsuas tuaj yeem qhia txog qhov kub thiab txias (yog tias muaj). Yog tias muaj kev hloov pauv, nkag mus rau qhov hloov kho qhov kev nyeem ntawv ntawm "0.003 PH /℃/ tus naj npawb ntawm PH units deviating ntawm PH=7" mus rau qhov kawg PH nyeem ntawv, thiab pH meter yuav tuaj yeem tso saib cov ntawv nyeem tau raug kho thiab ntau dua. Cov txheej txheem no tuaj yeem them rov qab zoo rau pH tus nqi yuam kev los ntawm kev hloov pauv kub.
