Dab tsi yog cov haujlwm ntawm ob kab ntawm kev ntsuas qhov ntsuas ntawm analog multimeter?
Txhua zaus koj siv ib qho analog multimeter, koj yuav tsum kho lub ohm rau xoom, muab cov xim liab thiab xim dub coj los ua ke los teeb tsa cov qib tsis kam, thiab kho cov pob qhov rooj "{{0}}Ω" los kho cov ntsuas. pointer rau 0.
Cia peb tham txog lub taub hau multimeter ua ntej. Thawj qhov ntsuas ntawm lub taub hau analog multimeter yog qhov tsis kam Ω. Tus nqi ntawm cov resistor yuav tsum tau saib ntawm sab xis mus rau sab laug. Tus nqi kuj tseem loj dua thaum koj mus rau sab laug. Cov ntawv nyeem ua denser thaum koj mus rau sab laug, kom txog rau thaum infinity. , infinity yog rov qab "8".
Cov 'meter' ranges teev tom qab lub resistor yog AC voltage, DC voltage ntau thiab DC tam sim no ntau yam. Kev nyeem ntawv ntawm cov kab no yog qhov qub thaum saib ntawm sab laug mus rau sab xis, thiab ua kom loj dua thaum koj mus rau sab xis.
Tom ntej no yog cov capacitors, transistors, thiab roj teeb theem, uas kuv yuav tsis mus rau hauv kom meej.
Tom ntej no, cia peb tham txog lub dial. Qhov tshwj xeeb tshaj plaws ntawm lub dial yog qhov tsis kam (Ω). Qhov ntau ntawm ohm ntau yog txhua qhov ntau ntawm qhov kev nyeem ntawv tiag tiag. Piv txwv li, nyob rau hauv lub × 10 ntau, thaum koj nyeem 100 ntawm lub 'meter', nws yuav tsum yog ntawm × 10, uas yog 1, 000 ohms.
Kev nyeem ntawv ntawm DCV DC voltage, ACV AC voltage, thiab DCMA DC tam sim no iav yog qhov qub. Koj tuaj yeem xaiv lub iav mus rau ib qho chaw thiab suav raws li qhov piv. Piv txwv li, yog tias koj ntsuas AC voltage ntawm 220 thiab xaiv 500V qib, koj yuav tsum faib lub dial rau tsib qhov sib npaug, yog li 220 txoj hauj lwm nyob rau sab laug ntawm qhov chaw.
Lwm lub zog, xws li rau lub qhov nyob rau sab laug, yog rau ntsuas HFE transistors, OFF yog rau kev kaw, thiab C yog rau ntsuas capacitance.
