Dab tsi yog qhov txawv ntawm megohmmeter thiab multi-megohmmeter?
1. Cov qauv sib txawv:
Lub megohmmeter yog tsim los ntawm nruab nrab mus rau loj scale integrated circuits. Cov lus no muaj lub zog tso zis siab, siab luv luv tam sim no tus nqi, thiab ntau qhov tso zis hluav taws xob ntau ntau (txhua tus qauv muaj plaub theem voltage).
Lub multimeter muaj peb qhov tseem ceeb: lub taub hau meter, ntsuas Circuit Court, thiab hloov pauv hloov.
2. Lub hauv paus ntsiab lus ua haujlwm txawv:
Lub megohmmeter ntsuas kev tiv thaiv los ntawm kev ua kom zoo siab ntawm lub cuab yeej lossis lub network hauv qab kev sim nrog qhov hluav taws xob, thiab tom qab ntawd ntsuas qhov tam sim no tsim los ntawm kev ua kom zoo siab siv Ohm txoj cai.
Lub hauv paus ntsiab lus ntawm multimeter yog siv lub rhiab magneto hluav taws xob DC ammeter (microampere meter) ua lub taub hau. Thaum ib tug me me tam sim no hla lub 'meter', yuav muaj ib tug qhia tam sim no.
3. Kev siv ntau yam sib txawv:
Megohmmeter yog ib qho cuab yeej siv thiab tseem ceeb hauv kev lag luam xws li hluav taws xob, xa ntawv thiab kev sib txuas lus, kev sib txuas lus, kev teeb tsa hluav taws xob thiab kev saib xyuas, nrog rau kev siv hluav taws xob ua hluav taws xob los yog lub zog. Nws yog qhov tsim nyog rau kev ntsuas qhov tseem ceeb ntawm cov khoom siv rwb thaiv tsev ntau yam thiab cov rwb thaiv tsev tiv thaiv ntawm transformers, motors, cables, thiab cov khoom siv hluav taws xob.
Lub multimeter tsis tsuas yog siv los ntsuas qhov tsis kam ntawm cov khoom ntsuas, tab sis kuj ntsuas AC thiab DC voltages. Txawm hais tias qee qhov multimeters tuaj yeem ntsuas qhov tseem ceeb ntawm cov transistors thiab cov capacitance ntawm capacitor.
