5 Dab tsi yog vim li cas lub nplhaib xim tsis tuaj yeem ntsuas nrog multimeter?
Ua ntej, koj yuav tsum txiav txim siab tus nqi nominal tsis kam ntawm koj tus resistor, kom paub: kev tiv thaiv ib txwm los ntawm xoom taw tes ob peb ohms mus rau kaum ntawm megohms (ib megohm yog sib npaug rau ib lab ohms) yog ua tau. Txiav txim siab tus nqi nominal tsis kam, thiab tom qab ntawd xaiv qhov ntau ntawm multimeter. Yog tias nws yog lub ntsuas ntsuas digital, tsis muaj kev nyeem ntawv rau qhov tseem ceeb ntawm qhov ntsuas (tso tawm raws li infinity). Pointer multimeter, ntau tshaj qhov ntau yog ntau dhau, tus pointer tsis tuaj yeem ua viav vias viav vias, lossis tsuas yog txav me ntsis. Tsuas yog yog tias qhov ntau tshaj qhov ntsuas qhov ntsuas ntawm qhov resistor, koj tuaj yeem tau txais kev nyeem ntawv.
Koj multimeter los ntsuas qhov kev xaiv qhov kev xaiv me ntsis uas iav. Nws yog qhov zoo tshaj plaws rau thawj xaiv cov iav tiv thaiv siab los ntawm cov iav tiv thaiv siab mus rau kev xaiv cov iav tsis muaj zog, tuaj yeem txhim kho qhov tseeb ntawm kev nyeem ntawv. Qee qhov kev tiv thaiv siab ntau pua ntawm K ob peb txhiab K tus nqi kuj qis, tsis tshua muaj kev nyeem ntawv tsis tuaj yeem qhia tus nqi tsis kam. Qee cov resistors tuaj yeem siv tau, yog tias cov iav tiv thaiv siab tsis tuaj yeem ntsuas tus nqi tiv thaiv, lub resistor siv tsis tau. Rau siv.
Nrog rau digital multimeter, lub iav ntawm qhov chaw tsis tuaj yeem ntsuas tus nqi tiv thaiv, yam tsawg kawg tsis tso cai. Koj siv lub ohm iav 2M ohm iav, ntsuas tsis teb, hais tias lub resistor qhib Circuit Court, uas yog, phem, hloov nrog ib tug tshiab!
Tsib-xim nplhaib resistor tsis tuaj yeem ntsuas qhov ntsuas tus nqi ntawm cov resistor, tsuas muaj ob qhov ua tau, ib qho yog qhov ntsuas tsis zoo. Xwb, tus resistor yog qhib Circuit Court (infinity)!
Resistance tus nqi yuav loj, tsis ruaj tsis khov tus nqi, tsis kam qhib Circuit Court, yog ib qho tsis ua hauj lwm ntawm tus resistor.
