Yuav cov ntsiab lus rau digital multimeters
Thaum muas ib lub multimeter, ua ntej soj ntsuam rooj plaub kom pom tias nws yog du thiab ci, tsis muaj khawb lossis tawg, thiab nplai ntawm lub dial yog ntshiab thiab huv si tsis muaj stains.
Tom qab ntawd, tig lub down-converter mus saib seb nws yog lub teeb thiab hloov tau, tsis muaj jamming thiab suab nrov. Koj tuaj yeem co lub multimeter horizontally ob peb zaug, tus pointer yuav tsum muaj damping zoo, lub viav vias yuav tsum tsis txhob loj dhau, thiab tsis muaj suab nrov nyob rau hauv lub 'meter'.
Txheeb xyuas qhov kev hloov kho xoom xoom (tus corrector nyob nruab nrab ntawm qhov chaw) kom pom tias tus pointer tuaj yeem hla xoom thiab seb nws puas tuaj yeem raug kho kom raug rau qhov xoom.
Thaum kawg, xyuas lub ohm iav ntawm lub roj teeb ntawm lub moos: luv-circuit ob lub ntsuas ntsuas, tig lub xoom-teev potentiometer rau pem hauv ntej thiab thim rov qab, tus pointer yuav tsum viav vias rov qab ntawm "0" Ω, thiab tuaj yeem raug kho kom raug mus rau xoom txoj hauj lwm.
Tsis tas li ntawd, koj tuaj yeem tshawb xyuas raws li cov khoom lag luam ua tau zoo hauv phau ntawv qhia seb nws ua tau raws li cov kev cai tshwj xeeb.
