Tom qab siv multimeter, qhov hloov pauv yuav tsum tau muab tso rau ntawm (qhov siab tshaj AC voltage lossis nruab nrab).

Tom qab siv multimeter, qhov hloov pauv yuav tsum tau muab tso rau ntawm (qhov siab tshaj AC voltage lossis nruab nrab). Tom qab siv multimeter, nws yog qhov zoo tshaj plaws rau lub multimeter los tso qhov kev hloov pauv ntawm qhov siab tshaj AC voltage lossis nruab nrab iav. Sab hauv tsis kam ntawm multimeter ntawm qhov siab tshaj AC voltage lossis nruab nrab iav yog qhov loj heev. Thaum ntsib qhov hluav taws xob loj lossis tam sim no, lub taub hau multimeter thiab Circuit Court yuav tsis raug kub hnyiab vim tias qhov hloov pauv ntawm multimeter nres ntawm txoj haujlwm tsis tsim nyog.

Lub hom phiaj tseem ceeb ntawm multimeter yog ntsuas voltage, tam sim no thiab tsis kam. Lub multimeter muab faib ua pointer multimeter thiab digital multimeter raws li hom zaub. Lub multimeter tuaj yeem siv tsis tau tsuas yog los ntsuas qhov tsis kam ntawm cov khoom los ntsuas, tab sis kuj ntsuas qhov DC voltage. Txawm hais tias qee qhov multimeters tuaj yeem ntsuas qhov tseem ceeb ntawm cov transistors thiab cov capacitance ntawm capacitor. Multimeter muaj xws li pointer multimeter thiab digital multimeter. Pointer type multimeter yog ib qho khoom siv ntsuas ntau yam nrog lub taub hau me me raws li cov ntsiab lus tseem ceeb. Tus nqi ntsuas yog qhia thiab nyeem los ntawm tus pointer ntawm lub taub hau meter. Qhov ntsuas tus nqi ntawm digital multimeter yog ncaj qha tso tawm hauv daim ntawv digital los ntawm LCD, uas yooj yim nyeem. Multimeter yog ib qho cuab yeej uas siv lub taub hau 'meter' thiab sib xyaw ua ke ntawm voltmeter, ammeter thiab ohmmeter. DC tam sim no ntau yam ntawm multimeter yog ntau yam DC voltmeter. Qhov hluav taws xob ntau tuaj yeem nthuav dav los ntawm kev sib txuas ntawm lub taub hau 'meter' nrog lub kaw lus kaw. DC voltage ntau ntawm multimeter yog ntau yam DC voltmeter. Qhov voltage ntau ntawm lub 'meter' tuaj yeem nthuav dav los ntawm kev sib txuas ntawm qhov sib faib hauv series. Qhov ntsuas qhov sib txawv nrog qhov voltage divider. Lub taub hau ntawm multimeter yog ib lub tshuab ntsuas magnetoelectric, uas tuaj yeem hloov AC rau DC los ntawm DC thiab diode, yog li paub txog AC ntsuas. Tom qab siv multimeter, teem caij hloov pauv mus rau qhov siab tshaj plaws AC voltage. Yog tias nws tsis siv sijhawm ntev, tshem tawm cov roj teeb hauv lub multimeter los tiv thaiv lub roj teeb los ntawm corroding lwm yam khoom hauv multimeter.