Dab tsi yog qhov txawv ntawm dial thiab digital multimeters?
Multimeter, tseem hu ua multi-meter, triple meter, multipurpose meter, multimeter muab faib ua pointer multimeter thiab digital multimeter lead. Nws yog ib qho kev ua haujlwm ntau, ntau qhov ntsuas ntsuas, cov ntsuas ntsuas dav dav tuaj yeem ntsuas DC tam sim no, DC voltage, AC tam sim no, AC voltage, tsis kam thiab qib suab, qee qhov kuj tuaj yeem ntsuas AC tam sim no, capacitance, inductance thiab semiconductor qee qhov tsis muaj.
Pointer multimeter yog ib hom khoom siv nruab nrab-tus nqi, uas muaj qhov nkag siab zoo, cov duab nyeem ntawv qhia. (Kev nyeem ntawv dav dav yog ze ze rau lub pointer viav vias lub kaum sab xis, yog li nws yog qhov yooj yim heev).
Digital multimeter yog ib qho cuab yeej tam sim no. Nws siv 0.3 vib nas this los coj tus qauv los qhia cov txiaj ntsig ntsuas, qee zaum txhua zaus cov txiaj ntsig kev ntsuas tsuas yog zoo sib xws, tsis zoo ib yam, uas tsis yooj yim li tus pointer hom nyeem tau.
Pointer multimeter feem ntau tsis muaj lub tshuab hluav taws xob sab hauv, yog li kev tiv thaiv sab hauv me me, xws li MF-10 hom, DC voltage rhiab heev ntawm 100 kilohm/volt, MF-500 hom DC voltage rhiab heev ntawm 20 kilohm/volt.
Digital multimeter vim kev siv sab hauv ntawm op amp Circuit Court, qhov kev tiv thaiv sab hauv tuaj yeem ua tau loj heev, feem ntau hauv 1M ohms lossis ntau dua. (piv txwv li qhov siab dua tuaj yeem tau txais). Qhov no tso cai rau kom muaj kev cuam tshuam me me rau hauv Circuit Court hauv kev sim thiab ntsuas qhov tseeb dua.
Pointer multimeter vim qhov me me nyob rau hauv tsis kam, thiab ntau discrete Cheebtsam los tsim ib tug shunt thiab voltage divider circuit. Yog li cov yam ntxwv zaus tsis sib xws (xws li digital), thaum cov yam ntxwv zaus ntawm tus pointer multimeter kuj zoo. Pointer multimeter sab hauv qauv yog yooj yim, yog li tus nqi qis dua, kev ua haujlwm tsawg dua, kev saib xyuas yooj yim, dhau-tam sim no dhau-voltage muaj peev xwm muaj zog dua.
Digital multimeter sab hauv siv ntau yam oscillation, amplification, crossover tiv thaiv thiab lwm yam circuits, yog li ntau zog. Piv txwv li, nws tuaj yeem ntsuas qhov kub thiab txias, zaus (hauv qhov qis), capacitance, inductance, ua teeb liab generator thiab lwm yam.
Digital multimeter vim yog cov qauv sab hauv ntawm ntau qhov sib xyaw ua ke, yog li lub peev xwm dhau qhov tsis zoo, (tab sis tam sim no qee qhov tau tuaj yeem hloov pauv, kev tiv thaiv tsis siv neeg, thiab lwm yam, tab sis kev siv ntau dua), tom qab kev puas tsuaj feem ntau tsis yog. yooj yim kho.
Pointer multimeter tso zis voltage yog siab, (10.5 volts, 12 volts, thiab lwm yam). Tam sim no kuj loj (xws li MF-500 * 1 ohm iav qhov siab tshaj plaws ntawm 100 mA los yog li ntawd) tuaj yeem yooj yim rau kev sim SCR, lub teeb-emitting diodes thiab lwm yam.
Digital multimeter tso zis voltage tsawg (feem ntau tsis ntau tshaj 1 volt). Rau qee qhov tshwj xeeb voltage yam ntxwv ntawm cov khoom ntawm qhov kev sim tsis yooj yim (xws li silicon tswj, lub teeb-emitting diodes, thiab lwm yam).
