Yuav ua li cas ntsuas voltage nrog multimeter
Txoj kev ntsuas qhov ntsuas hluav taws xob ntawm lub tshuab hluav taws xob yog thawj zaug hloov qhov hloov pauv hauv tsib-ceev ntau yam cim nrog V (AC voltage yuav tsum tau ua raws li AC voltage iav, thiab DC voltage yuav tsum tau ua raws li DC voltage iav). Thaum ntsuas qhov voltage, txuas lub 'meter' coj mus rau hauv Circuit Court nyob rau hauv kev sim nyob rau hauv parallel. Raws li qhov kwv yees tus nqi ntawm lub voj voog nyob rau hauv kev sim, xaiv ib txoj haujlwm tsim nyog. Tus nqi siab tshaj plaws ntawm txhua lub xov tooj qhuav yog 1.5V, yog li nws tuaj yeem muab tso rau hauv 5V ntau yam. Lub sijhawm no, 500 ntawm tag nrho cov nplai nyeem ntawm rab koob ntawm lub vaj huam sib luag yuav tsum tau nyeem raws li 5. Qhov ntawd yog 100 zaus me dua. Yog tias rab koob taw qhia ntawm 300 cim, nws nyeem 3V. Nco ntsoov tias qhov ntsuas tus nqi qhia los ntawm qhov ntxeev ntawm qhov hloov pauv yog tus nqi sib xws ntawm kev nyeem ntawv tag nrho ntawm rab koob ntawm lub taub hau ntsuas. Thaum nyeem cov 'meter', koj tuaj yeem nyeem tus nqi tiag tiag ntev npaum li nws hloov dua siab tshiab. Tsuas yog rau cov iav tiv thaiv, txhua lub zog ntawm qhov hloov pauv tau nyeem qhov ntsuas tau ua li no. Hauv qhov ntsuas qhov tseeb, thaum kwv yees tus nqi ntawm qhov ntsuas qhov ntsuas tsis tuaj yeem txiav txim siab, qhov hloov pauv tuaj yeem hloov mus rau qhov siab tshaj plaws ua ntej, thiab tom qab ntawd qhov ntau tuaj yeem raug txo mus rau qhov tsim nyog. Thaum ntsuas DC voltage, koj yuav tsum tau them sai sai rau qhov zoo thiab qhov tsis zoo polarities. Yog tias koj tsis paub qhov zoo thiab qhov tsis zoo ntawm lub voj voog, koj tuaj yeem muab qhov ntau ntawm Wantian meter nyob rau hauv lub siab tshaj plaws iav, sim nws nyob rau hauv Circuit Court nyob rau hauv kev sim sai sai, thiab saib yuav ua li cas tus cwj mem yog deflected, koj muaj peev xwm txiav txim. qhov zoo thiab tsis zoo polarity.
