Dab tsi yog xoom drift ntawm PH meter thiab yuav daws nws li cas!
Dab tsi yog xoom drift ntawm PH meter, yuav daws li cas! PH meter xoom drift teeb meem, ua ntej ntawm tag nrho cov, koj yuav tsum to taub qhov xoom drift, cuam tshuam rau xoom drift ntawm lub 'meter' ntau yam, tshwj xeeb tshaj yog direct-coupled amplifiers, nws yog ib qho nyuaj rau tag nrho kov yeej qhov teeb meem loj ntawm xoom drift. Thaum lub hwj chim mov voltage sib txawv, lub amplifying lub ntsiab yam ntxwv ntawm kev ua hauj lwm lub xeev hloov, lub Circuit Court tivthaiv tsis muaj ib puag ncig kub hloov thiab lub continuation ntawm lub sij hawm ua hauj lwm, nyob rau hauv lub input yog xoom thaum cov zis muaj ups thiab downs, uas yog, lub zero point drift. Ib zaug ntxiv yog kom pom qhov teeb meem, PH electrode ntawm qhov teeb meem yuav tau qhia ntau heev, xws li electrode scaling yuav ua rau muaj kev tsis sib haum xeeb ntawm cov electrodes thiab yog li ua rau drift, lub sij hawm ntev electromagnetic cuam tshuam yuav ua rau muaj teeb meem, electrode polarization tseem yuav cuam tshuam. . Ob peb txoj hauv kev los txo qhov kev xav ntawm xoom drift: 1. kev siv cov khoom siv fais fab, 2. kev siv AC amplifier circuits, 3. dynamic input impedance. Muaj pH meter thiab kuaj PH meter stability thiab xoom drift daws.
1. Daim ntawv thov tsis zoo tawm tswv yim Circuit Court. Txhawm rau txo qhov xoom drift, txhim kho kev ruaj ntseg, pH meter amplifier siv los ntawm daim ntawv thov kev tawm tswv yim tsis zoo, kev siv DC tsis zoo tawm tswv yim tuaj yeem tsis tsuas yog txhim kho cov tswv yim impedance ntawm lub ntsuas, tab sis kuj txhim kho kev ruaj ntseg ntawm lub ntsuas, yog li ntawd qhov ntsuas qhov rhiab heev thiab ntau yam tsis cuam tshuam los ntawm kev hloov pauv ntawm cov khoom siv hluav taws xob.
