Qhov txawv ntawm megohmmeter thiab multimeter ntsuas rwb thaiv tsev tsis kam
Lub megohmmeter tshwj xeeb yog siv los ntsuas kev tiv thaiv hluav taws xob, vim tias nws tuaj yeem tso tawm qhov hluav taws xob siab tshaj li ob peb puas volts, thiab tuaj yeem ntsuas qhov ntsuas hluav taws xob ntawm cov khoom siv hluav taws xob ntau dua.
Cov zis voltage ntawm lub multimeter yog tsawg heev, txawm tias qhov tso zis voltage ntawm R × 10k block ntawm pointer multimeter tsis siab, thiab nws muaj peev xwm ntsuas qhov rwb thaiv tsev tsis kam ntawm qee cov khoom siv hluav taws xob tsawg tsawg.
Yog hais tias ib tug multimeter yog siv los ntsuas cov rwb thaiv tsev tsis kam ntawm cov khoom siv hluav taws xob, nws cov nqi kuj yuav tsis kawg, thiab cov kev ua haujlwm tiag tiag ntawm cov khoom siv hluav taws xob yog ntau pua volts lossis ntau txhiab volts. Nyob rau lub sijhawm no, cov rwb thaiv tsev tiv thaiv pom los ntawm kev ntsuas tsis muaj qhov kawg, thiab yuav dhau los ua me me.
Yog li ntawd, txhawm rau ntsuas qhov rwb thaiv tsev ntawm cov khoom siv hluav taws xob, qhov ntsuas yuav tsum raug xaiv raws li qhov ntsuas qhov ntsuas hluav taws xob ntawm cov khoom siv hluav taws xob. Feem ntau, ib lub megohmmeter yog siv los ntsuas qhov rwb thaiv tsev.
