Kev txheeb xyuas yooj yim ntawm cov haujlwm yooj yim ntawm multimeter
Multimeters, tseem hu ua multimeters, multimeters, peb-meters, multimeters, thiab lwm yam, yog qhov tseem ceeb ntsuas ntsuas hauv hluav taws xob hluav taws xob thiab lwm lub tuam tsev. Feem ntau, lub hom phiaj tseem ceeb yog ntsuas qhov voltage, tam sim no thiab tsis kam. Multimeters muab faib ua pointer multimeters thiab digital multimeters raws li hom zaub. Nws yog ib qho kev ntsuas ntau yam thiab ntau yam ntsuas. Feem ntau, lub multimeter tuaj yeem ntsuas DC tam sim no, DC voltage, AC tam sim no, AC voltage, tsis kam thiab suab qib, thiab lwm yam, thiab qee qhov kuj tuaj yeem ntsuas AC tam sim no, capacitance, inductance thiab semiconductor. Qee qhov ntsuas (xws li ) thiab lwm yam.
Lub luag haujlwm tseem ceeb ntawm multimeter:
Lub multimeter tuaj yeem siv tsis tau tsuas yog ntsuas qhov tsis kam ntawm cov khoom ntsuas, tab sis kuj ntsuas qhov DC voltage. Qee qhov multimeters tuaj yeem ntsuas qhov tseem ceeb ntawm cov transistors thiab lub peev xwm ntawm capacitors. Nws yog ib qho ntawm cov kev txawj ntse tshaj plaws ntawm kev siv tshuab hluav taws xob kom ua tau zoo hauv kev siv multimeters. Multimeters muaj xws li pointer multimeters thiab digital multimeters. Lub pointer multimeter yog ib qho kev ntsuas ntau yam nrog lub ntsuas lub taub hau raws li cov ntsiab lus tseem ceeb, thiab ntsuas tus nqi yog 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 cov kua siv lead ua kua, uas yooj yim nyeem, thiab qee qhov kuj muaj lub suab nrov ua haujlwm. Multimeter yog ib lub 'meter' uas sib txuas lub voltmeter, ammeter thiab ohmmeter hauv ib lub taub hau.
Cov ntaub ntawv DC tam sim no ntawm multimeter yog ntau hom DC voltmeter. Qhov hluav taws xob ntau tuaj yeem nthuav dav los ntawm kev sib txuas ntawm qhov hluav taws xob kaw hluav taws xob faib hluav taws xob sib txuas nrog lub taub hau 'meter'. Cov ntaub ntawv DC voltage ntawm multimeter yog ntau yam DC voltmeter. Txuas lub voltage faib resistor nyob rau hauv series nrog lub 'meter' lub taub hau yuav nthuav nws voltage ntau yam. Qhov sib txawv voltage faib cov resistors muaj qhov sib txawv ntsuas qhov sib txawv. Lub taub hau ntawm lub multimeter yog ib qho kev ntsuas magnetoelectric system, uas tsuas tuaj yeem dhau los ntawm qhov ncaj qha tam sim no, thiab siv cov diodes hloov pauv mus rau qhov tam sim no ncaj qha, yog li paub txog qhov ntsuas ntawm kev hloov tam sim no.
